Modpack version
1.67d

Can the issue be reproduced?
Yes

Logs
Not needed

Issue
Buggy Version of Mecreeps
The Version of Mecreeps installed in the Pack has the Mecreeps unable to do anything, this is fixed in 1.3.1 of Mecreeps

Thanks for letting me know, I'll be sure to update it for 1.68

It took me a while to trace the issue, as the Update for Meecreeps came out the same day as the Update for your pack :)