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Wordpress Wartungsmodus aktivieren
function wpr_maintenance_mode() {
if ( !current_user_can( 'edit_themes' ) || !is_user_logged_in() ) {
wp_die('Kurzer Unterbruch in Folge Wartungsarbeiten, versuchen Sie es in Kürze wieder.');
add_action('get_header', 'wpr_maintenance_mode');
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