Can't delete nor create a new shared folder

Hello

when I try to delete an unreferenced shared folder (the Referenced colums says No, and in facts they are not used by rsync, smb or whatever) I get this error

Can someone help pls? Thx in advance!

Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; systemctl restart 'sharedfolders-BU\x2dVarie.mount' 2>&1' with exit code '1': Assertion failed on job for sharedfolders-BU\x2dVarie.mount.

Errore #0:
OMV\ExecException: Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; systemctl restart 'sharedfolders-BU\x2dVarie.mount' 2>&1' with exit code '1': Assertion failed on job for sharedfolders-BU\x2dVarie.mount. in /usr/share/php/openmediavault/system/process.inc:182
Stack trace:
#0 /usr/share/php/openmediavault/system/systemctl.inc(86): OMV\System\Process->execute(Array, 1)
#1 /usr/share/php/openmediavault/system/systemctl.inc(160): OMV\System\SystemCtl->exec('restart', NULL, false)
#2 /usr/share/openmediavault/engined/module/sharedfolders.inc(66): OMV\System\SystemCtl->restart()
#3 /usr/share/openmediavault/engined/rpc/config.inc(194): OMVModuleSharedfolders->startService()
#4 [internal function]: OMVRpcServiceConfig->applyChanges(Array, Array)
#5 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#6 /usr/share/php/openmediavault/rpc/serviceabstract.inc(149): OMV\Rpc\ServiceAbstract->callMethod('applyChanges', Array, Array)
#7 /usr/share/php/openmediavault/rpc/serviceabstract.inc(565): OMV\Rpc\ServiceAbstract->OMV\Rpc\{closure}('/tmp/bgstatusPO...', '/tmp/bgoutput9R...')
#8 /usr/share/php/openmediavault/rpc/serviceabstract.inc(159): OMV\Rpc\ServiceAbstract->execBgProc(Object(Closure))
#9 /usr/share/openmediavault/engined/rpc/config.inc(213): OMV\Rpc\ServiceAbstract->callMethodBg('applyChanges', Array, Array)
#10 [internal function]: OMVRpcServiceConfig->applyChangesBg(Array, Array)
#11 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#12 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('applyChangesBg', Array, Array)
#13 /usr/sbin/omv-engined(537): OMV\Rpc\Rpc::call('Config', 'applyChangesBg', Array, Array, 1)
#14 {main}

In spite of further tests, I still cant solve the riddle.

Can't delete folders - which would be a secondary issue after all - and can't create new ones either !

Anyone has any suggestion pls ?

Ok I found the issue, Or at least half of it.

The problem was that I was trying to delete a folder referring to another shared folder.

In the Shared Folders gui, both folders were marked as not referenced.

Simply put: deleting folder B before folder A worked ok, and allowed me to delete folder A.

Now I can also create more new folders, which was prevented before - this part I did not understand the reason for: must be somehow related to the previous situation but...?