Server Error uploading to gallery/library

I started having a problem trying to save my builds a few weeks ago and I have spent almost an entire day trying to fix it today. I keep getting a pop up saying there is a server error and to try again later and I have tried everything to fix it. I have cleared my caches and have tried emptying my tray. I got rid of all cc and mods and added them back in group by group but now I can only save builds on my test save file and not the save files I want to save my builds on. I don’t think it’s a corrupt save file or anything because it’s happening on multiple and I can still save households to my library and gallery just not full builds or rooms. What else can I try?