THANK YOU! Such an easy fix. I unchecked theme support and everything is working! If it had been a snake it would have bit me! That’s what happens when you have spent 12 hours staring at code! LOL! Thanks @robin-w
Nothing is broken when style pack is disabled. I just can’t customize the forum look.
Before style pack activated:

After Style Pack Activated:


Yes I did that. It isn’t working.