Addendum: I have managed with this information in the wp-config
define( ‘WP_DEBUG’, true );
define( ‘WP_DEBUG_LOG’, true );
define( ‘WP_DEBUG_DISPLAY’, false );
to get the message away from the presentation page. Which certainly doesn’t remove the warning/error though.
Please explain to me what happened there and how it will be corrected. Inquiries in other WP forums indicated that something was not “cleanly” programmed in the theme programming. I can not judge this and just want to give it as a hint.
Thanks for their help if they read this.
Website: www.beate-eierle.de