when i place a quarry in my world it freezes minecraft and I have to open task manager and quit it.

It is version 1.11.2 buildcraft version 7.99.4 alpha but I found out the problem was that optimize was outdated. I don't know how optimize caused it

What BC and MC version is this? Also if it heapens again could you collect and upload a threaddump with a tool like visualVM?