Which unneeded files can I delete

I used bitwarden and now 99,9 % are used. which (temp)-files can I delete to have more space agian.

What is your configuration (OS, version, docker version, etc)?

Also how much space did you allocate for your Bitwarden server?

It may be good to grab a screenshot of the files (of course redact any that need it) that are in your server and their sizes, too.