Music app stuck without being able to update - General error: 4047 InnoDB

But this is really where I describe and try to get help with the music app error and get back into my Nextcloud

This thread is mainly a question if I can get rid of my old Nextcloud image and load a new one and get back into it that way. Like a really hard reset…

I really want to use my Nextcloud and I do not know what to do.