title says it, when i open a WCT, the client crashes (but not the server.)

MC Version : 1.12.2
Forge Version : 14.23.4.2705
WCT Version : 3.9.68
Crash report : https://pastebin.com/Yh9tjf7U
Modpack : Custom Modpack
AE2 Version : appliedenergistics2-rv6-alpha-2

edit : added AE2 version

thx

thanks for the reactivity. great work. 👍