Some rpgmaker MV problem

Can’t save ✓
Can’t see the character drawings✓
Frequent in-game option button malfunctions✓
FUNNY GALLERY✓
The third one is normal

Game:Lovey-Dovey Lockdown
Joiplay version:1.20.550 patreon

Guys,I have tried the game I have played before.They didn’t work on the new version. I think it’s may need rollback or something