Old plugins not possible to delete, Error: Jail not found

[embe]

Hi, i am new to FreeNas. I just upgraded from 9.2. to 9.3, before that from 8.x to 9.2 i believe.
I was trying to install Mediabrowser3 plugin but after installation it wont start. So i have been trying to solve it. None of the plugins which I installed on 8.x version of FreeNas wont start, so i tried to delete all of them and i got error: Jail not found.

Any idea how to delete old plugins or how to make it working again?

I am running FreenNas 9.3-STABLE-201412090314.
Server powerful enough, 16GB Ram.

Thanks!

 

[dlavigne]

8.x jails/plugins won't work on 9.x systems. This means that you will have to reinstall your plugins and/or jails.

Check which dataset is selected in Jails -> Configuration. You may have to temporarily change it in order to remove the old jail datasets.