I think I solved the permission issue? See edit in the main post.

Is there a command to check that?

sudo chmod 777 /your/linguacafe/temp/folder -R

I have done that and it doesn’t seem to help. Edited main post to reflect that.

Sorry that’s on me. That’s one thing I removed from the pastebin file on purpose, it’s here in the real one. I copy paste my path to be sure it’s correct.