Quad face tool error report

I started to use Quadface tools, and installed by extension wharehouse.
Although it work well, error report window showed when i use all icon about quadface tool.
TTlib2 also installed. How can i resolve it?
My version is sketchup 2020 classic.

Do send in the error reports so @thomthom could get a clue about what is the matter.

Yeah, I didn’t know what happen, but maybe something was wrong. I sent it.

I met the same situation (but not for all icons).
Have you got the solution yet?
Could you please share the solution if you have anything can solve this problem.

I found solution!