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Fatal error: Uncaught Error: Call to undefined function wp_next_scheduled() in /var/www/vhosts/mavrelis.gr/httpdocs/wp-includes/functions.php:6711 Stack trace: #0 /var/www/vhosts/mavrelis.gr/httpdocs/wp-includes/class-wp-hook.php(286): wp_schedule_delete_old_privacy_export_files('') #1 /var/www/vhosts/mavrelis.gr/httpdocs/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #2 /var/www/vhosts/mavrelis.gr/httpdocs/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #3 /var/www/vhosts/mavrelis.gr/httpdocs/wp-settings.php(510): do_action('init') #4 /var/www/vhosts/mavrelis.gr/httpdocs/wp-config.php(92): require_once('/var/www/vhosts...') #5 /var/www/vhosts/mavrelis.gr/httpdocs/wp-load.php(37): require_once('/var/www/vhosts...') #6 /var/www/vhosts/mavrelis.gr/httpdocs/wp-blog-header.php(13): require_once('/var/www/vhosts...') #7 /var/www/vhosts/mavrelis.gr/httpdocs/index.php(20): require('/var/www/vhosts...') #8 {main} thrown in /var/www/vhosts/mavrelis.gr/httpdocs/wp-includes/functions.php on line 6711