Using MPMPM for a modded multiplayer game with friends, using bowman causes crash?

[willbound]

Here's the .dmp file
any help would be appreciated, modpack will be included to look at as well

modpack made with mpmpm: https://drive.google.com/file/d/14TKGzPR1T0MpclaFx_pcVCWqRE0K_H5G/view?usp=sharing

.dmp file:
https://drive.google.com/file/d/1R3d_cRxliHMz51qsapRwZJFUjRY-koxN/view?usp=sharing