Version:1.12.2 forge-14.23.5.2854
Crash after install JAOPCA mod.
If I disabled either IC2 or Thermal Foundation. Crash won't happen.
https://pastebin.com/tK1vidxn

----------Edit 22/06-------
Found problem.
Cause by Crafttweaker's script.
Code below.

function oredictDelAll(ores as IOreDictEntry){
var a= ores;
for i in a.items {
a.remove(i);
}
}
oredictDelAll(ore:dustNickel);