Update main.py

main.py

@@ -23,7 +23,7 @@ load_dotenv()
 EXA_API_KEY      = os.getenv("EXA_API_KEY")
 GEMINI_API_KEY   = os.getenv("GEMINI_API_KEY")
 FIREBASE_JSON    = os.getenv("FIREBASE")
-FIREBASE_DB_URL  = os.getenv("FIREBASE_DB_URL")
+FIREBASE_DB_URL  = os.getenv("Firebase_DB")
 STORAGE_BUCKET   = os.getenv("Firebase_Storage")
 
 if not (EXA_API_KEY and GEMINI_API_KEY and FIREBASE_JSON and FIREBASE_DB_URL and STORAGE_BUCKET):