diff --git a/ModelGrader.sqlite3 b/ModelGrader.sqlite3
index 04be82e..6ff7887 100644
Binary files a/ModelGrader.sqlite3 and b/ModelGrader.sqlite3 differ
diff --git a/api/sandbox/section10/testcases/.gitkeep b/api/sandbox/section10/testcases/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/api/sandbox/section4/testcases/.gitkeep b/api/sandbox/section4/testcases/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/api/sandbox/section5/testcases/.gitkeep b/api/sandbox/section5/testcases/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/api/sandbox/section6/testcases/.gitkeep b/api/sandbox/section6/testcases/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/api/sandbox/section7/testcases/.gitkeep b/api/sandbox/section7/testcases/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/api/sandbox/section8/testcases/.gitkeep b/api/sandbox/section8/testcases/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/api/sandbox/section9/testcases/.gitkeep b/api/sandbox/section9/testcases/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/api/urls.py b/api/urls.py
index e5a2b4a..30373b7 100644
--- a/api/urls.py
+++ b/api/urls.py
@@ -10,6 +10,7 @@
     path("accounts",account.create_account),
     path("accounts/<int:account_id>",account.get_account),
     path("accounts/<int:account_id>/daily-submissions",account.get_daily_submission),
+    path("accounts/<int:account_id>/password",account.change_password),
 
     path('accounts/<int:account_id>/problems',problem.create_problem),
     path('problems',problem.all_problem),
diff --git a/api/views/account.py b/api/views/account.py
index 0c1d610..b69df3b 100644
--- a/api/views/account.py
+++ b/api/views/account.py
@@ -25,6 +25,14 @@ def get_account(request,account_id):
     except:
         return Response({'message':'Account not found!'},status=status.HTTP_404_NOT_FOUND)
 
+@api_view([PUT])
+def change_password(request,account_id):
+    account = Account.objects.get(account_id=account_id)
+    account.password = passwordEncryption(request.data['password'])
+    account.save()
+
+    return Response({'message':"Your password has been changed"})
+
 @api_view([GET])
 def get_daily_submission(request,account_id:int):
     submissions = Submission.objects.filter(account_id=account_id)
@@ -40,6 +48,4 @@ def get_daily_submission(request,account_id:int):
         else:
             submission_by_date[date] = {"count":1, "submissions": [ submission ]}
     
-    print(submission_by_date)
-
     return Response({"submissions_by_date": submission_by_date})
\ No newline at end of file
diff --git a/api/views/auth.py b/api/views/auth.py
index 110c8dd..11df9d1 100644
--- a/api/views/auth.py
+++ b/api/views/auth.py
@@ -11,8 +11,7 @@
 from time import time
 from decouple import config
 
-TOKEN_LIFETIME_HOURS = int(config('TOKEN_LIFETIME_HOURS'))
-TOKEN_LIFETIME = TOKEN_LIFETIME_HOURS * 60 * 60 # (Second)
+TOKEN_LIFETIME = int(config('TOKEN_LIFETIME_SECOND')) # (Second)
 
 @api_view([POST])
 def login(request):
diff --git a/api/views/problem.py b/api/views/problem.py
index 28d2fd9..8690787 100644
--- a/api/views/problem.py
+++ b/api/views/problem.py
@@ -18,7 +18,7 @@ def create_problem(request,account_id):
     checked = checker(1,request.data['solution'],request.data['testcases'],request.data.get('time_limit',1.5))
 
     if checked['has_error'] or checked['has_timeout']:
-        return Response({'detail': 'Error during creating. Your code may has an error/timeout!'},status=status.HTTP_406_NOT_ACCEPTABLE)
+        return Response({'detail': 'Error during creating. Your code may has an error/timeout!','result': checked},status=status.HTTP_406_NOT_ACCEPTABLE)
         
     problem = Problem(
         language = request.data['language'],
@@ -44,13 +44,27 @@ def create_problem(request,account_id):
 @api_view([GET,DELETE])
 def all_problem(request):
     if request.method == GET:
+
         problem = Problem.objects.all()
+
+        get_private = int(request.query_params.get("private",0))
+        get_deactive = int(request.query_params.get("deactive",0))
+        account_id = int(request.query_params.get("account_id",0))
+        
+        if not get_private:
+            problem = problem.filter(is_private=False)
+        if not get_deactive:
+            problem = problem.filter(is_active=True)
+        if account_id != 0:
+            problem = problem.filter(account_id=account_id)
+
+        problem = problem.order_by('-problem_id')
+
         result = [model_to_dict(i) for i in problem]
 
         for i in result:
             i['creator'] = model_to_dict(Account.objects.get(account_id=i['account_id']))
 
-        result.reverse()
         return Response({'result':result},status=status.HTTP_200_OK)
     elif request.method == DELETE:
         target = request.data.get("problem",[])
diff --git a/api/views/submission.py b/api/views/submission.py
index 6b6ea78..209a3c4 100644
--- a/api/views/submission.py
+++ b/api/views/submission.py
@@ -8,7 +8,7 @@
 from ..sandbox import grader
 from time import sleep
 
-QUEUE = [0,0,0]
+QUEUE = [0,0,0,0,0,0,0,0,0,0]
 
 def avaliableQueue():
     global QUEUE
diff --git a/start.sh b/start.sh
new file mode 100644
index 0000000..19721a2
--- /dev/null
+++ b/start.sh
@@ -0,0 +1 @@
+python manage.py runserver 0.0.0.0:8000
\ No newline at end of file