as the tittel said my old pc gave in on me and all the files I had for the game are unrecoverable I have managed to rebuild the core loop but I was wondering if I can use art packs that I bought instead of making the art to recover the loss of files
Yes, both paid and free assets are allowed in this jam. So long as you aren't using anything you don't have the rights to, it should be fine. When you submit the survey will ask about this, so just mention that you used stock assets.