SpongeForge Core Mod support?

Hello,
lately i got an issue report about SpongeForge (issue). My mod ItemPhysic can’t be used on a SpongeForge Server due to some ASM Transformer crashes.

So my question is, is there a way to fix an issue like that? I’m sure that this is a lot more difficult because those files don’t exits like in forge, so my transformation end up ruining everything.

In Regards
CreativeMD

EDIT:
Posted on Github issues: https://github.com/SpongePowered/SpongeForge/issues/649

It seems that you are directly using minecraft classes in your class transformer. This is a potential error source. Forge alone does not check this, sponge does. As far as I can see in your source, you are using these classes:
import net.minecraft.client.gui.GuiScreen; import net.minecraft.client.renderer.entity.RenderItem; import net.minecraft.util.DamageSource;

All of these would normally run though the class transformers, so you cannot use them while you’re transforming.