Installed Rock-On Missing from List

Rockstor 4.0.4-0

I have a custom Rock-On, Crashplan-Pro, installed and running. I stopped the Rock-On, added a new folder to the config so that it could be backed up, and restarted the Rock-On. It disappeared from the list of installed Rock-Ons. However, it is running and I can access its Web UI. I rebooted the server and it is still missing from the Installed list. Even after the reboot, I can still access the Web UI.

Clicking the “Update” button results in an error, but no information is displayed.

ksnip_20210228-075721