McMyAdmin

apt-get --purge remove openmediavault-mcmyadmin
deluser mcmyadmin
delgroup mcmyadmin

Then install the plugin again.

Greetings
David

It hapenned to me once, and I could not find solution. Just a fresh reinstall.
@davidh2k, it's possible to move mcmyadmin default install dir to a different one?
I want to put it in my data disk, not my os disk, so I could also mount it via samba. I tried to symlink, mcmyadmin service seems to start from plugin but I cannot access to the webpage.
Could it be a permission problem? How can I move mcmyadmin dir?
Thanks!

Have you tried hardlinks? Or just symlink it the other way around? Leave it where it is and put just a symlink into your samba shared folder?

First of all, I'm not a linux expert, but tryed to read as many as I can before doing any step.
I tryied symlinking mcmyadmin folder to an external mcmyadmin folder (a copy of the original with -a to save permissions) located in my data disk where I can mount samba/nfs folders.
From the plugin the service seems to start but when opening web interface no page appears. Testing with the original mcmyadmin folder works, but not from the symlinked folder.
I haven't try harlink but I read it cannot work on folders, just files.
Maybe someone can try it and post the right method to do it....

EDIT: @WastlJ What I want is not only mount the folder on samba, the main reason is to avoid putting data on the OS disk, I want to put the data on the data disks.... help would be appreciated