blank image issue on multiple req

controller.py

@@ -339,12 +339,12 @@ def groq_chart(csv_url: str, question: str):
     for attempt in range(len(groq_api_keys)):
         try:
             # Clean cache before processing
-            cache_db_path = "/workspace/cache/cache_db_0.11.db"
-            if os.path.exists(cache_db_path):
-                try:
-                    os.remove(cache_db_path)
-                except Exception as e:
-                    print(f"Cache cleanup error: {e}")
+            # cache_db_path = "/workspace/cache/cache_db_0.11.db"
+            # if os.path.exists(cache_db_path):
+            #     try:
+            #         os.remove(cache_db_path)
+            #     except Exception as e:
+            #         print(f"Cache cleanup error: {e}")
 
             data = clean_data(csv_url)
             with current_groq_chart_lock: