The newest update, 1.0.8, is having some issues on launching the game and causing a crash.

Mixin apply for mod mavm failed mavm.mixins.json:AxolotlMixin from mod mavm -> net.minecraft.class_5762: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException

Crashes for forge too. Something is wrong

Same issue here using the latest version on Fabric.

Here's a paste of the log

Fixed, thanks for reporting.
Fabric:
https://modrinth.com/mod/mavm/version/1.0.8a
https://www.curseforge.com/minecraft/mc-mods/mavm/files/3819281
Forge:
https://modrinth.com/mod/mavm/version/v1.0.8b
https://www.curseforge.com/minecraft/mc-mods/mavm/files/3819284