What is the link you are using for DeepBot?
Essentially if you restart DeepBot, OBS loses its connection with DeepBot. As such, it shows it has disconnected.
To fix this, simply edit the source and save again, which will cause OBS to reload the source and connect to the new instance of DeepBot.
The notification pages are being upgraded with an auto reconnect timer which should do this automatically going forward. If you can let me know which link you are using, I can process the upgrade on that page as well.
Regards,
Experts