Hi Ruco,
i already tried to disable all third party plugins, but nothing changed.
At this moment i’m running the website locally via MAMP (the way like i always do for new projects). The PHP-version is 7.2.7.
I will transfer the website to an online server and i will send you the credentials.
Regards, Bjorn
Hi Ruco!
Thank you for the support.
I get the same error when i go to wp-admin/customize.php after logging in.
I just activated the default theme Twenty Nineteen and in that case, the customizer is working fine: https://cl.ly/daba7605b63c
