Hi Nikko,
the addition was only the way to find out what is the problem and to configure the plugin.
Is it possilbe to deactivate the maps api for the plugin pages?
in addition:
when i disable Google MAPS API through the child theme with
add_filter('avf_load_google_map_api_prohibited', 'avf_load_google_map_api_prohibited_true', 10, 1);
function avf_load_google_map_api_prohibited_true($prohibited) {
$prohibited = true;
return $prohibited;
}
everything works fine inside the plugin.