Forgot file mode

bot.py

@@ -53,10 +53,10 @@ def write_json(key: str, value: any):
     data[key] = value
 
     if exists('config.local.json'):
-        with open('config.local.json') as f:
+        with open('config.local.json', 'w') as f:
             f.write(json.dumps(data))
     elif exists('config.json'):
-        with open('config.json') as f:
+        with open('config.json', 'w') as f:
             f.write(json.dumps(data))
 
 client.run(data['token'])