diff --git a/sea_transport/adminpanel.cpp b/sea_transport/adminpanel.cpp
index c596f91..d424284 100644
--- a/sea_transport/adminpanel.cpp
+++ b/sea_transport/adminpanel.cpp
@@ -1,10 +1,10 @@
 #include "adminpanel.h"
 #include "ui_adminpanel.h"
 
+
 AdminPanel::AdminPanel(QWidget *parent) : QMainWindow(parent), ui(new Ui::AdminPanel) {
     ui->setupUi(this);
 
-    uvm = new UsersViewModel(this);
 
 //    connect(ui->pb_logout, &QPushButton::clicked, this, &AdminPanel::on_logout_requested);
 
@@ -20,9 +20,14 @@ AdminPanel::AdminPanel(QWidget *parent) : QMainWindow(parent), ui(new Ui::AdminP
 //    connect(ui->pb_dp_add, &QPushButton::clicked, this, &AdminPanel::on_delivery_point_add);
 //    connect(ui->pb_dp_remove, &QPushButton::clicked, this, &AdminPanel::on_delivery_point_remove);
 
+
 //    ui->tv_vessels->setModel();
+
+    uvm = new UsersViewModel(this);
     ui->tv_users->setModel(uvm);
+
 //    ui->tv_dp->setModel();
+
 //    ui->tv_storages->setModel();
 
 
diff --git a/sea_transport/authwindow.cpp b/sea_transport/authwindow.cpp
index 76b4bbf..f8a13ff 100644
--- a/sea_transport/authwindow.cpp
+++ b/sea_transport/authwindow.cpp
@@ -23,8 +23,9 @@ void AuthWindow::on_auth_requested() {
 
     bool success = false;
     auto a = apparatus::instance()->get_auth_subsystem();
+
     if (apparatus::isFirstRun()) {
-        success = a.register_user(login, passw, UserRole::ADMINISTRATOR);
+        success = a->register_user(login, passw, UserRole::ADMINISTRATOR);
         if (!success) {
             QMessageBox::critical(this, "Error", "Cannot register you. Check filesystem permission");
             return;
@@ -35,7 +36,7 @@ void AuthWindow::on_auth_requested() {
         }
     }
 
-    auto user = a.get_user(login, success);
+    auto user = a->get_user(login, success);
     if (!success) {
         QMessageBox::critical(this, "Error", "User not found");
         return;
@@ -48,18 +49,25 @@ void AuthWindow::on_auth_requested() {
     }
 
 
+    QWidget *w;
     if (user->role() == UserRole::ADMINISTRATOR) {
-        AdminPanel(nullptr).set_user(*user).showNormal();
+        w = new AdminPanel(nullptr);
+        ((AdminPanel*) w)->set_user(*user);
     }
     else if (user->role() == UserRole::DISPATCHER) {
         //  DispatcherPanel(nullptr, user).set_user(user).show();
+        return;
     }
     else if (user->role() == UserRole::SKIPPER) {
         //  SkipperPanel(nullptr, user).set_user(user).show();
+        return;
     }
     else {
         QMessageBox::critical(this, "Error", "Deserialized user have wrong type. "
                                              "It may mean corruption of data.");
         return;
     }
+
+    w->show();
+    close();
 }
diff --git a/sea_transport/main.cpp b/sea_transport/main.cpp
index a37cf30..5a92eef 100644
--- a/sea_transport/main.cpp
+++ b/sea_transport/main.cpp
@@ -13,8 +13,8 @@ int main(int argc, char *argv[]) {
     w.show();
 
     QObject::connect(&a, &QApplication::aboutToQuit, []() {
-        apparatus::shutdown();
-        if (apparatus::isFirstRun()) {
+        apparatus::instance()->save();
+        if (apparatus::isFirstRun() && apparatus::instance()->get_auth_subsystem()->users().length() > 0) {
             apparatus::generate_lock_file();
         }
     });
diff --git a/sea_transport/system/apparatus.cpp b/sea_transport/system/apparatus.cpp
index 4e4e89f..91c2ec3 100644
--- a/sea_transport/system/apparatus.cpp
+++ b/sea_transport/system/apparatus.cpp
@@ -4,27 +4,15 @@
 apparatus *apparatus::_instance = nullptr;
 const QString apparatus::filename = "data.bin";
 
-void apparatus::open_stream() {
-    this->_bin_file = new QFile(apparatus::filename);
-    this->_bin_file->open(QIODevice::ReadWrite);
-
-    stream.setDevice(_bin_file);
-}
-
-void apparatus::close_stream() {
-    stream.setDevice(nullptr);
-
-    this->_bin_file->close();
-    delete this->_bin_file;
-    this->_bin_file = nullptr;
-}
-
 apparatus::apparatus() {
-
+    this->_auth_system = new auth_system();
+    this->_object_system = new object_system();
 }
 
 apparatus::~apparatus() {
-
+    this->save();
+    delete this->_auth_system;
+    delete this->_object_system;
 }
 
 void apparatus::generate_lock_file() {
@@ -42,52 +30,79 @@ apparatus* apparatus::instance() {
     return apparatus::_instance;
 }
 
+void apparatus::save() {
+    if (_instance == nullptr) {
+        return;
+    }
+    QFile f(apparatus::filename);
+    f.open(QIODevice::WriteOnly);
+    QDataStream stream(&f);
+
+    // saving GIDs
+    entity_id vgid = vessel_entity::GID();
+    entity_id sgid = storage_entity::GID();
+    stream << vgid << sgid;
+
+    // serializing data
+    this->_auth_system->serialize_data(&stream);
+    this->_object_system->serialize_data(&stream);
+
+    f.close();
+}
+
+void apparatus::load() {
+    if (_instance == nullptr) {
+        throw std::runtime_error("HOW DU FUCK INSTANCE IS NULL????");
+    }
+    QFile f(apparatus::filename);
+    f.open(QIODevice::ReadOnly);
+    QDataStream stream(&f);
+
+    // loading GIDs
+    entity_id vgid, sgid;
+    stream >> vgid >> sgid;
+    vessel_entity::preloadGlobalId(vgid);
+    storage_entity::preloadGlobalId(sgid);
+
+    // deserializing data
+    this->_auth_system->deserialize_data(&stream);
+    this->_object_system->deserialize_data(&stream);
+
+    f.close();
+}
+
 bool apparatus::isFirstRun() {
     return !QFile().exists("lock");
 }
 
-auth_system& apparatus::get_auth_subsystem() {
+auth_system* apparatus::get_auth_subsystem() {
     return this->_auth_system;
 }
 
-object_system& apparatus::get_object_subsystem() {
+object_system* apparatus::get_object_subsystem() {
     return this->_object_system;
 }
 
 void apparatus::init() {
+    if (apparatus::_instance != nullptr) {
+        throw std::runtime_error("System already initialized!");
+    }
+
+    bool fr = apparatus::isFirstRun();
     apparatus::_instance = new apparatus();
 
-    apparatus::_instance->open_stream();
-    apparatus::_instance->loadGIDS();
-    apparatus::_instance->deserialize_data();
+    if (fr) {
+        if (!QFile().exists(apparatus::filename)) {
+            QFile init(apparatus::filename);
+            init.open(QIODevice::ReadWrite);
+            init.close();
+        }
+        apparatus::_instance->save();
+    }
+
+    apparatus::_instance->load();
 }
 
 void apparatus::shutdown() {
-    apparatus::_instance->writeGIDS();
-    apparatus::_instance->serialize_data();
-    apparatus::_instance->close_stream();
     delete apparatus::_instance;
 }
-
-void apparatus::writeGIDS() {
-    entity_id vgid = vessel_entity::GID();
-    entity_id sgid = storage_entity::GID();
-    this->stream << vgid << sgid;
-}
-
-void apparatus::loadGIDS() {
-    entity_id vgid, sgid;
-    this->stream >> vgid >> sgid;
-    vessel_entity::preloadGlobalId(vgid);
-    storage_entity::preloadGlobalId(sgid);
-}
-
-void apparatus::serialize_data() {
-    this->_auth_system.serialize_data(this->stream);
-    this->_object_system.serialize_data(this->stream);
-}
-
-void apparatus::deserialize_data() {
-    this->_auth_system.deserialize_data(this->stream);
-    this->_object_system.deserialize_data(this->stream);
-}
diff --git a/sea_transport/system/apparatus.h b/sea_transport/system/apparatus.h
index eb62840..43ddeee 100644
--- a/sea_transport/system/apparatus.h
+++ b/sea_transport/system/apparatus.h
@@ -18,29 +18,18 @@ private:
     static apparatus *_instance;
     static const QString filename;
 
-    QFile *_bin_file;
-    QDataStream stream;
-
-    auth_system _auth_system;
-    object_system _object_system;
-
-    void open_stream();
-    void close_stream();
-
-    void writeGIDS();
-    void loadGIDS();
+    auth_system* _auth_system;
+    object_system* _object_system;
 
 public:
-    apparatus();
+    explicit apparatus();
     ~apparatus();
 
-    void generate_empty_data();
-    auth_system& get_auth_subsystem();
-    object_system& get_object_subsystem();
+    auth_system* get_auth_subsystem();
+    object_system* get_object_subsystem();
 
-
-    void serialize_data();
-    void deserialize_data();
+    void save();
+    void load();
 
     static bool isFirstRun();
     static void generate_lock_file();
diff --git a/sea_transport/system/auth_system.cpp b/sea_transport/system/auth_system.cpp
index 5d70ea1..a6c53aa 100644
--- a/sea_transport/system/auth_system.cpp
+++ b/sea_transport/system/auth_system.cpp
@@ -1,4 +1,6 @@
+#include "apparatus.h"
 #include "auth_system.h"
+#include <iostream>
 
 
 const user_entity* auth_system::get_user(const QString &login, bool &success) {
@@ -32,29 +34,35 @@ bool auth_system::register_user(const QString &login, const QString &password, U
     bool exists = false;
     this->get_user(login, exists);
     if (!exists) {
+        std::cout << apparatus::instance()->get_auth_subsystem()->users().length() << std::endl;
         this->_users.push_back(user_entity(login, password, role));
+        std::cout << apparatus::instance()->get_auth_subsystem()->users().length() << std::endl;
+        apparatus::instance()->save();
+        std::cout << apparatus::instance()->get_auth_subsystem()->users().length() << std::endl;
         return true;
     }
 
     return false;
 }
 
-const QVector<user_entity> auth_system::users() const {
+const QVector<user_entity>& auth_system::users() const {
     return this->_users;
 }
 
-void auth_system::deserialize_data(QDataStream &stream) {
+void auth_system::deserialize_data(QDataStream *stream) {
     int icnt;
-    stream >> icnt;
-    this->_users.resize(icnt);
-    for (int i = 0; i < icnt; i++) {
-        this->_users[i].deserialize(stream);
+    *stream >> icnt;
+    if (icnt > 0) {
+        this->_users.resize(icnt);
+        for (int i = 0; i < icnt; i++) {
+            this->_users[i].deserialize(*stream);
+        }
     }
 }
 
-void auth_system::serialize_data(QDataStream &stream) {
-    stream << this->_users.size();
+void auth_system::serialize_data(QDataStream *stream) {
+    *stream << this->_users.size();
     for (auto &item : this->_users) {
-        item.serialize(stream);
+        item.serialize(*stream);
     }
 }
diff --git a/sea_transport/system/auth_system.h b/sea_transport/system/auth_system.h
index c87439f..ecc42ae 100644
--- a/sea_transport/system/auth_system.h
+++ b/sea_transport/system/auth_system.h
@@ -17,10 +17,10 @@ public:
     bool remove_user(const QString &login);
     bool register_user(const QString &login, const QString &password, UserRole role);
 
-    const QVector<user_entity> users() const;
+    const QVector<user_entity>& users() const;
 
-    void deserialize_data(QDataStream &stream);
-    void serialize_data(QDataStream &stream);
+    void deserialize_data(QDataStream *stream);
+    void serialize_data(QDataStream *stream);
 };
 
 #endif // AUTH_SYSTEM_H
diff --git a/sea_transport/system/object_system.cpp b/sea_transport/system/object_system.cpp
index 1aa46b6..6b6456c 100644
--- a/sea_transport/system/object_system.cpp
+++ b/sea_transport/system/object_system.cpp
@@ -85,30 +85,34 @@ const QVector<vessel_entity> object_system::vessels() const {
     return this->_vessels;
 }
 
-void object_system::deserialize_data(QDataStream &stream) {
+void object_system::deserialize_data(QDataStream *stream) {
     int dicnt;
-    stream >> dicnt;
-    this->_dpoints.resize(dicnt);
-    for (int i = 0; i < dicnt; i++) {
-        this->_dpoints[i].deserialize(stream);
+    *stream >> dicnt;
+    if (dicnt > 0) {
+        this->_dpoints.resize(dicnt);
+        for (int i = 0; i < dicnt; i++) {
+            this->_dpoints[i].deserialize(*stream);
+        }
     }
 
     int vicnt;
-    stream >> vicnt;
-    this->_vessels.resize(vicnt);
-    for (int i = 0; i < vicnt; i++) {
-        this->_vessels[i].deserialize(stream);
+    *stream >> vicnt;
+    if (vicnt > 0) {
+        this->_vessels.resize(vicnt);
+        for (int i = 0; i < vicnt; i++) {
+            this->_vessels[i].deserialize(*stream);
+        }
     }
 }
 
-void object_system::serialize_data(QDataStream &stream) {
-    stream << this->_dpoints.size();
+void object_system::serialize_data(QDataStream *stream) {
+    *stream << this->_dpoints.size();
     for (auto &item : this->_dpoints) {
-        item.serialize(stream);
+        item.serialize(*stream);
     }
 
-    stream << this->_vessels.size();
+    *stream << this->_vessels.size();
     for (auto &item : this->_vessels) {
-        item.serialize(stream);
+        item.serialize(*stream);
     }
 }
diff --git a/sea_transport/system/object_system.h b/sea_transport/system/object_system.h
index 095e2e5..2239a42 100644
--- a/sea_transport/system/object_system.h
+++ b/sea_transport/system/object_system.h
@@ -28,8 +28,8 @@ public:
     const QVector<dpoint_entity> dpoints() const;
     const QVector<vessel_entity> vessels() const;
 
-    void deserialize_data(QDataStream &stream);
-    void serialize_data(QDataStream &stream);
+    void deserialize_data(QDataStream *stream);
+    void serialize_data(QDataStream *stream);
 };
 
 #endif // OBJECT_SYSTEM_H
diff --git a/sea_transport/viewmodels/usersviewmodel.cpp b/sea_transport/viewmodels/usersviewmodel.cpp
index 6ad267c..93785f2 100644
--- a/sea_transport/viewmodels/usersviewmodel.cpp
+++ b/sea_transport/viewmodels/usersviewmodel.cpp
@@ -5,7 +5,7 @@ UsersViewModel::UsersViewModel(QObject *parent) : QAbstractTableModel(parent) {
 }
 
 int UsersViewModel::rowCount(const QModelIndex & /*parent*/) const {
-    return apparatus::instance()->get_object_subsystem().vessels().size();
+    return apparatus::instance()->get_object_subsystem()->vessels().size();
 }
 
 int UsersViewModel::columnCount(const QModelIndex & /*parent*/) const {
@@ -28,7 +28,7 @@ QVariant UsersViewModel::headerData(int section, Qt::Orientation orientation, in
 
 QVariant UsersViewModel::data(const QModelIndex &index, int role) const {
     if (role == Qt::DisplayRole) {
-        auto item = apparatus::instance()->get_auth_subsystem().users()[index.row()];
+        auto item = apparatus::instance()->get_auth_subsystem()->users()[index.row()];
         int col = index.column();
 
         switch (col) {
diff --git a/sea_transport_project.pro.user b/sea_transport_project.pro.user
index 62fefe9..be69ce2 100644
--- a/sea_transport_project.pro.user
+++ b/sea_transport_project.pro.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.13.3, 2020-12-18T19:53:31. -->
+<!-- Written by QtCreator 4.13.3, 2020-12-22T14:58:07. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
@@ -65,10 +65,17 @@
     <value type="bool" key="AutoTest.Framework.QtTest">true</value>
    </valuemap>
    <valuemap type="QVariantMap" key="AutoTest.CheckStates">
+    <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:apparatus_check_auth_subsystem">Checked</value>
+    <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:apparatus_check_first_run">Checked</value>
+    <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:apparatus_check_null_throws_error">Checked</value>
+    <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:apparatus_check_object_subsystem">Checked</value>
     <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:cargo_entity_serialization_test">Checked</value>
+    <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:cleanupTestCase">Unchecked</value>
     <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:dpoint_entity_serialization_test">Checked</value>
+    <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:initTestCase">Unchecked</value>
     <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:st_test">Checked</value>
     <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:storage_entity_serialization_test">Checked</value>
+    <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:user_entity_password_verification_test">Checked</value>
     <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:user_entity_serialization_test">Checked</value>
     <value type="Qt::CheckState" key="C:/Users/Admin/Documents/repos/sea_transport_project/st_test/tst_st_test.cpp:vessel_entity_serialization_test">Checked</value>
    </valuemap>
@@ -99,7 +106,7 @@
    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">qt.qt5.5150.win64_mingw81_kit</value>
    <value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
    <value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
-   <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">1</value>
+   <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
     <value type="bool">true</value>
     <value type="int" key="EnableQmlDebugging">0</value>
diff --git a/st_test/tst_st_test.cpp b/st_test/tst_st_test.cpp
index 8a21a9f..0e015bb 100644
--- a/st_test/tst_st_test.cpp
+++ b/st_test/tst_st_test.cpp
@@ -245,18 +245,18 @@ void st_test::apparatus_check_first_run() {
 
 void st_test::apparatus_check_auth_subsystem() {
     apparatus::init();
-    auth_system as = apparatus::instance()->get_auth_subsystem();
+    auto as = apparatus::instance()->get_auth_subsystem();
     {
-        bool test = as.register_user("testor", "passwd", UserRole::ADMINISTRATOR);
+        bool test = as->register_user("testor", "passwd", UserRole::ADMINISTRATOR);
         QVERIFY(test);
     }
     {
         bool test;
-        as.get_user("testor", test);
+        as->get_user("testor", test);
         QVERIFY(test);
     }
     {
-        bool test = as.remove_user("testor");
+        bool test = as->remove_user("testor");
         QVERIFY(test);
     }
     apparatus::shutdown();
@@ -264,19 +264,19 @@ void st_test::apparatus_check_auth_subsystem() {
 
 void st_test::apparatus_check_object_subsystem() {
     apparatus::init();
-    object_system os = apparatus::instance()->get_object_subsystem();
+    auto os = apparatus::instance()->get_object_subsystem();
     dpoint_entity p("test");
     {
-        bool test = os.add_dpoint(p);
+        bool test = os->add_dpoint(p);
         QVERIFY(test);
     }
     {
         bool test;
-        os.get_dpoint(p.id(), test);
+        os->get_dpoint(p.id(), test);
         QVERIFY(test);
     }
     {
-        bool test = os.remove_dpoint(p.id());
+        bool test = os->remove_dpoint(p.id());
         QVERIFY(test);
     }
     apparatus::shutdown();