(SOLVED) Game's crashing upon pressing "New world" or "Singleplayer"

Game started crashing after involving sound file into mod. It just crashes instantly once i press "Singleplayer" or try to make new world; by tests figured out that it has nothing to do with conflicts, java and etc, old versions of mod work fine. 
Even after deleting the file game keeps crashing, tried celaring Gradle cache and folders, rebuilt code twice, nothing helps, even crash logs can't provide any clear info (at least for me).
I left crash log on pastebing: https://pastebin.com/vhdKmxjV
Maybe someone with more knowledge will understand what's exactly causing the problem.
 
SOLVED: Mod used inexistent sound file for some reason :/