Crash when the Vs. Loading screen shows up.

[Clett7]

I'm loosing my mind over here, can someone please help me with smash ultimate mods? Everything was perfectly fine never had a problem before, I literally moded all 8 skins of all characters making it 700 plus , moded all stages everything was good, recently the game started to crash every time I start a match.Mind you this is all couch co-op I had never played online, so I went and deletes everything in my sd card loosing everything that took me months to do, and after remoding my switch even tho I have no mods on smash it still crashes.I had tried it all, I'm loosing my mind over here ? please help.