Update app.py

app.py

@@ -48,7 +48,7 @@ def get_file_path(question: str) -> str:
 
 def get_ref_content(path: str) -> str | object:
     """Retrieves content from the reference path provided."""
-    if path.endswith('mp3') or file startswith('https://www.youtube.com/'):
+    if path.endswith('mp3') or path.startswith('https://www.youtube.com/'):
         file = librosa.load(path)
     elif path.endswith('.xlsx') or path.endswith('.xls'):
         file = pd.read_excel(path).to_json()