If you are seeing the socket disconnected while you are on the **Add** or **Bulk add** pages, it can mean:
- The application is not running anymore (it somehow stopped after you accessed the page): check that the application is running and its log for errors,
- You restarted the application and it can take some time for the socket to be back up: just wait a bit it should automatically re-connect,
- You are using the CORS allowed origin restriction (via the `BK_DOMAIN_NAME` environment variable) with a mismatching value: you should see a log line similar to this following one in your application logs.
```
http://127.0.0.1:3333 is not an accepted origin. (further occurrences of this error will be logged with level INFO)
[2025-01-18 18:15:52,980] ERROR - http://127.0.0.1:3333 is not an accepted origin. (further occurrences of this error will be logged with level INFO)
```
Make sure the value you have set is matching the URL of your application.
If it is not the case, adjust the value and restart the application.