latest.log
Sorry for no crash-reports, there's only logs.
Mods used:

forge 1.12.2-14.23.5.2854
Nsiso Launcher

P.S. successfully launched without both AquaAcrobatics and MixinBootstrap

Thanks for the report! The latest.log file is all I need.
Fixed now in 7c52ba7. Crash was caused by incompatibility with wings mod.