I only installled a few plugins but that was far before the last update.
Check that OMV is proper installed with dpkg -l | grep openm
Code
pi@omv:~ $ dpkg -l | grep openm
iF openmediavault 6.3.10-2 all openmediavault - The open network attached storage solution
ii openmediavault-cputemp 6.1.3 all cpu temperature plugin for openmediavault
ii openmediavault-diskstats 6.0.3-1 all openmediavault disk monitoring plugin
ii openmediavault-filebrowser 6.0.4-1 all openmediavault File Browser plugin
ii openmediavault-flashmemory 6.2 all folder2ram plugin for openmediavault
ii openmediavault-keyring 1.0 all GnuPG archive keys of the OpenMediaVault archive
ii openmediavault-omvextrasorg 6.1.1 all OMV-Extras.org Package Repositories for OpenMediaVault
pi@omv:~ $
I think the first "iF" is because the 6.3.10-2 update is not properly configured.
Will try the script later.
Anyway thanks a lot for your help!