I'm using 3.8.2
When I click on customize this page, the following error messages appears:
Cannot read file 'builder-retina.png'. Either the file does not exist or there is a permission problem.
×Cannot read file 'painter-retina.png'. Either the file does not exist or there is a permission problem.
I did not find anything on help and I did send an email to support, but in the email it refers back to the forum help.