Was exploring the catacomb dimension in creative and got this lovely crash.

Have a crash log here and wanted to know if you accepted this form:
https://paste.dimdev.org/ohomowexuv.mccrash

• If it is possible provide your logs.
  Minecraft: 1.12.2, Forge 14.23.5.2822 and GraveStone-1.12.2-Graves-1.3.1.jar GraveStone-1.12.2-Extended-1.3.5.1.jar