Hi @upapi_rockstor,
The last error leads me to think your attempt at installing the rock-on remained hanging and somehow never completed. Now, I wonder why that is, and the first error you report (pasted below) may indicate some problem with your disks/pools… @phillxnet, would you have an idea regarding the error below?
Going back to the new Duplicati rock-on, I believe you would need to reset its status using the /opt/rockstor/bin/delete-rockon script. See below for instructions:
In your case, the command should be:
/opt/rockstor/bin/delete-rockon "Duplicati - by Linuxserver.io"
Then, click “Update” on the rock-on page to refresh the database status, and you should be able to try again its installation. Note, however, that it would fail again if the error I pasted above is causing this issue, so we may need to resolve that one first.
By the way, would you be able to specify which version of Rockstor you are using?
Sorry for the rather brief reply, I’m a little short on time now, but still wanted to chime in…