Caused by: org.spongepowered.asm.mixin.injection.throwables.InvalidInjectionException: @at("CONSTANT") on net/minecraft/client/renderer/entity/DrownedRenderer::rotate90Degrees with priority 1000 cannot inject into net/minecraft/client/renderer/entity/DrownedRenderer::m_7523_(Lnet/minecraft/world/entity/monster/Drowned;Lcom/mojang/blaze3d/vertex/PoseStack;FFF)V merged by com.teamabnormals.upgrade_aquatic.core.mixin.client.DrownedRendererMixin with priority 1000 [PREINJECT Applicator Phase -> mob-ai-tweaks.mixins.json:DrownedEntityRendererMixin from mod mob_ai_tweaks -> Prepare Injections -> -> constant$lgo000$mob_ai_tweaks$rotate90Degrees(F)F -> Prepare]

didn't know upgrade aquatic finally updated
that should be a quick fix

already found the issue and fixed it, releasing a fix in a bit

fix released, closing issue