On Forge version 37.0.103 the game crashes at start up. I first thought this was due to a possible conflict with another mod, but it also happens with this being the only mod in the mods folder.

Minecraft Version: 1.17.1
Forge Version: 37.0.103
Mod Version: horsecombatcontrols-1.17.1-1.0.0.jar from CurseForge

Attached debug and latest log:
debug.log
latest.log

Fixed with newest release