We are playing All The Mods 4 and it appears that your mod is the issue for a recurring crash.

https://pastebin.com/sq2REZW8

Any further information needed just let me know

Hmm, intresting, I'll take a look. The mod version would be handy.

It's at the bottom of the crash report - buildinggadgets-3.1.1b.jar Building Gadgets {[email protected] DONE}

Thanks

Hmm, that's building gadgets?

My bad - mininggadgets-1.2.3.jar

Hopefully that fixes it :). I couldn't reproduce, but thats my best guess.