Update app.py

app.py

@@ -406,7 +406,7 @@ def main():
             with gr.Tab("Generate Questions"):
                 try:
                     # Assuming these are defined in backend2.py
-                    from backend2 import (
+                    from backend3 import (
                         load_json_data,
                         PROFESSIONS_FILE,
                         TYPES_FILE,