well yesterday was electronic black Wednesday for me, Phone crashed, FTB.wiki wasn't loading (couldn't post or save edits nor refresh) and then after a restart (hoping it might fix the lag and whatever else was going awry) the game crashed with this error:
I thought it had something to do with the Nvidia driver update the day before, but after rolling back still the same. No clue what happened to the pack for this core mod to go missing but I downloaded it and now it's loading although it's missing some blocks from the Draconic mod, curiouser... go figure.