quick fix

app.py

@@ -164,10 +164,13 @@ poll_questions = PollQuestions.from_json_file("templates.json")
 
 def logout(request: gr.Request):
     cookies = ["access-token-unsecure", "access-token"]
-    for cookie in cookies:
-        if request.cookies.get(cookie):
-            request.cookies.pop(cookie)
-            LOG.warning(f"Deleted cookie for {request.request}")
+    if request:
+        fastapi_request = request.request
+        if fastapi_request:
+            for cookie in cookies:
+                if fastapi_request.cookies.get(cookie):
+                    fastapi_request.cookies.pop(cookie)
+                    LOG.warning(f"Deleted cookie for {fastapi_request}")
 
 
 def reset_textbox():