CM - Compact Machines
CC - Computer craft
PC - Pneumatic Craft

The game crashes on startup when running with Computer craft, Pneumatic craft and Compact Machines.

The game will run if CM and CC or CM and PC or CC and PC are together but will not run at all 3 are running at the same time.

Mod Pack crash log

Isolated mods crash log

Compact machiens 1.20 works with all 3 but not 1.21 so its something thraaawn will have to fix