diff --git a/app.py b/app.py
index eff345b..183641d 100644
--- a/app.py
+++ b/app.py
@@ -1,4 +1,3 @@
-import os
 from flask import Flask, redirect, render_template, session, request, url_for, flash
 
 from auth import login_required, bp as auth_bp
@@ -47,9 +46,6 @@ def create_app(test_config=None):
             deck_query.filter(Deck)
             return index()
 
-
-        deck_id = deck_object.id
-
         # Smo oddali obrazec?
         if request.method == 'POST':
             card_id = request.form.get('card_id', None)
@@ -74,7 +70,6 @@ def create_app(test_config=None):
                 if not rate:
                     raise Exception("manjka rate info!")
 
-
                 if rate == "Yes":
                     submit_card.interest_rate = 1
                 
@@ -104,6 +99,7 @@ def create_app(test_config=None):
 
                 deck_object.current_card = next_card
                 dbsession.commit()
+                dbsession.close()
         
         # Loudamo naslednjo karto v decku
         show_card_index = deck_object.current_card
@@ -130,6 +126,7 @@ def create_app(test_config=None):
         print("share!!!")
         return redirect(url_for("deck"))
 
+
     @app.route('/logout')
     def logout():
         session.pop("user_id", None)