So, as title said - shared code for modpack listed http://happydiggers.net/content.php?117&tabid=107 here (q4pnMAOf) appears to be incorrect.
I click (in packs tab) TNFC pack, then New instance, then Select recommended mods, after that - Use shared Code.
This is the error thingy https://i.gyazo.com/c69ad0fc0d4a7127...eb7dd24259.png
Please, update code!