got this crash, thought it was just vampyrisim, disabled this mod and the crash went away. Error: java.lang.ClassCastException: class de.teamlapen.vampirism.entity.vampire.BasicVampireEntity cannot be cast to class net.minecraft.world.entity.player.Player (de.teamlapen.vampirism.entity.vampire.BasicVampireEntity is in module [email protected] of loader 'TRANSFORMER' @c6c58ce; net.minecraft.world.entity.player.Player is in module [email protected] of loader 'TRANSFORMER' @c6c58ce)

Can you send the full crash report please? It'll be in packfolder/crash-reports

Edit: Ah, nevermind, it appears to happen with fire damage

Should be fixed in the latest release