diff --git a/.gitignore b/.gitignore
index 4992cb6..b8045e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -70,3 +70,5 @@ migrations/*
 .env
 .idea/*
 *.zip
+
+modules/*
diff --git a/PDMI/blueprints/admin/__init__.py b/PDMI/blueprints/admin/__init__.py
index 1d52928..77a18f9 100644
--- a/PDMI/blueprints/admin/__init__.py
+++ b/PDMI/blueprints/admin/__init__.py
@@ -103,7 +103,7 @@ admin = Admin(  # server,
     index_view=IndexView(menu_icon_type='fa',
                          menu_icon_value='fa-home', ),
     name='PDMI',
-    template_mode='bootstrap4-left',
+    template_mode='bootstrap3',
     category_icon_classes={
         'Administration': 'fa fa-cogs',
     },
diff --git a/PDMI/config.py b/PDMI/config.py
index d6ab7e6..83ae729 100644
--- a/PDMI/config.py
+++ b/PDMI/config.py
@@ -10,7 +10,7 @@ DEBUG = True # TODO
 # ======================================================================================================================
 # =================================================== sqlalchemy =======================================================
 # ======================================================================================================================
-SQLALCHEMY_DATABASE_URI = "mysql://"+os.environ["DATABASE_USER"]+":"+os.environ["DATABASE_PASSWORD"]+\
+SQLALCHEMY_DATABASE_URI = "mysql+pymysql://"+os.environ["DATABASE_USER"]+":"+os.environ["DATABASE_PASSWORD"]+\
                           "@"+os.environ["DATABASE_HOST"]+":"+os.environ["DATABASE_PORT"]+"/"\
                           +os.environ["DATABASE_NAME"]
 SQLALCHEMY_TRACK_MODIFICATIONS = False
diff --git a/PDMI/models.py b/PDMI/models.py
index 5102408..8b157c2 100644
--- a/PDMI/models.py
+++ b/PDMI/models.py
@@ -25,7 +25,7 @@ class Roles(db.Model, RoleMixin):
 class Modules(db.Model):
     __tablename__ = "modules"
     id = db.Column(db.Integer, primary_key=True, autoincrement=True)
-    name = db.Column(db.String(400))
+    name = db.Column(db.String(100))
     versions = db.relationship('ModuleVersions', backref='modules', lazy=True)
 
 
@@ -40,9 +40,9 @@ class Users(db.Model, UserMixin):
     __tablename__ = "users"
     id = db.Column(db.Integer, primary_key=True)
     date_created = db.Column(db.DateTime, default=datetime.datetime.utcnow)
-    username = db.Column(db.String(400))
-    email = db.Column(db.String(400), unique=True)
-    password = db.Column(db.String(400))
+    username = db.Column(db.String(100))
+    email = db.Column(db.String(100), unique=True)
+    password = db.Column(db.String(200))
     active = db.Column(db.Boolean)
     roles = db.relationship('Roles', secondary=roles_users,
                             backref=db.backref('users', lazy='dynamic'))