Try to loading the Game with the Last available Source on Github (self compiled GT-PlusPlus-1.4.9.43-alpha.jar) and get a crash.

https://gist.github.com/Dream-Master/1c76292566799aa0d4b2a7d6c98cb00e

Try with GTNH Pack.
https://github.com/GTNewHorizons/NewHorizons

yes works. Thanks