DivineRPG version
[1.4.7][V1.3.0.4][SMP]

Describe the bug
Server can't save the world cause class xolova.blued00r.divinerpg.entities.tileentities.TileEntityCoalStoneFurnace is missing a mapping

1.4.7 isnt supported anymore

Do you have it's sources?

If the branch isnt on this repo it is not available

I've fixed that.
Link to fixed mod: https://drive.google.com/file/d/1aaAHlXo51zTz5mrhESrJJR2lCTyJj33R/view?usp=sharing
You can upload it to curseforge I'm not against