Plugin prevent from opening my workspace

Hello guys,

Sorry for bothering but I try to open my workspace in the last version of mcreator, the problem is, that I can't cause there is geckolib and it's no longer supported in the newer version, no problem if I delete all the geckolib related elements but I just want to open my workspace.

Any ideas ? I tried to delete everything related to mobs animation and geckolib but while opening with mcreator I get the same message.