Hi there,
since upgrading to Matomo 3.11.0, the following warning sporadically shows up on the Diagnostic > System Check page:
WARNING: plugins/CustomVariables/CustomVariables.php(82): Notice - Undefined index: CustomVariables.MaxNumCustomVariables - Matomo 3.11.0 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already)
I don’t use CustomVariables at all. It’s disabled in Plugins page. Any ideas?