Server is crashing due to HBM Mod and it can't be fixed

[EmperorBelmont]

My friends and I have an Aternos Server that we use for casual building, and we tried to start the server this morning and the server simply won't start.

It says that it's due HBM and I can't fix it, I tried deleting it and it started with no problem, but we need the mod because we built 80% of the server with blocks of this mod.

I would appreciate anyone commenting