Update app.py

app.py

@@ -157,8 +157,11 @@ def main():
                 json.dump({}, f)
 
         with open("history.json", "r") as f:
-            history = json.load(f)
-
+            try:
+                history = json.load(f)
+            except:
+                print('error')
+                
         # Handling URL submission
         if url:
             subdir = hashlib.md5(url.encode()).hexdigest()