Update app.py

app.py

@@ -46,7 +46,7 @@ def get_html(url):
         logging.error(f"An error occurred when getting HTML: {e}")
         return None
 
-def get_question(exercises, question_index, img_base_url=img_base_url, href_base_url=href_base_url):
+def get_question(exercises, question_index, img_base_url, href_base_url):
     question_index = question_index - 1
     
     if question_index >= len(exercises):