Pico CMS issue after upgrading from NC 23 to NC 24

Nextcloud version:
Operating system and version: Debian GNU/Linux 11. 5.15.32-v8+ (aarch64)
NCP Version: 1.50.3

I’m using pico CMS and use the theme Freelancer. I recently upgraded from NC 23 to NC 24. After upgrading, my site is showing internal server error. Upon checking it seems to only happen to the theme Freelancer. I did some things I can’t remember exactly anymore and now that theme has been removed. However, readding adding gets an error and every time I try to add it again says it already exists. So my problem now is that I can’t debug that theme anymore :sweat_smile: Is there a way to reset the themes or something? I can’t find the config file of pico CMS in the server.