Lost data

If someone has an idea.... Ps4. kid still plays lbp3. turned on today and lost all his community costumes, objects, stickers....anything community related he had saved. all dlc costumes and in game items are still there.

Attempted to rebuild database since it had logged error codes ce34878-0 and nothing. Currently reinstalling game but taking forever we're in the pod and its still installing what it needs to. Even had a few levels he made on his moon with a small movie he was working on and those are missing as well.

Possible he just lost all the community items? I got a ps5 for Christmas and checked the game files i thought I transferred there with the ps4-ps5 data transfer and apparently only the profile copied. If anyone's ever run into something similar...