@tig said:

Have you installed the latest versions of Lib Fredo and the SketchUcation toolset ?
Have you restarted SketchUp afterwards ?
This is needed to properly sync the set up...

As Rich says, also check that your firewall set up 'whitelists' SketchUcation.com etc...

Hello, do you have a detailed explanation for this manipulation? On my side nothing seems to block and I do not see where whitelist sketcheducation on my Mac or on ski directly. Thanks

Hello, I have purchased Curviloft, installed Fredo Lib and Sketchup Extension but I can't activate my license for some reason. Here is the error message when I try to activate it:
"Sorry - An error has occurred in communication with Sketchudaction"
(SKP 2021 MAC OS 12.0)