I got the following error in Roundcube Plugin 2.0.2
I found this thread with a solution for an older version, but it doesn't work for me:
i-MSCP 1.5.x / RoundcubePlugins plugin 2.0.1 / Invalid working directory specified (Composer)
I tried to deactive, delete and deinstall the plugin, but I'm not allowed to do, because of "unexpected error" in the plugin.
How I can fix this - any hint?