Fatal error: Uncaught Error: Class "The7_REST_Mail_Controller" not found in /var/www/vhosts/it-stuff.at/public_html/wp-content/themes/dt-the7/inc/theme-setup.php:359 Stack trace: #0 /var/www/vhosts/it-stuff.at/public_html/wp-includes/class-wp-hook.php(324): the7_rest_api_init() #1 /var/www/vhosts/it-stuff.at/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #2 /var/www/vhosts/it-stuff.at/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #3 /var/www/vhosts/it-stuff.at/public_html/wp-includes/rest-api.php(597): do_action() #4 /var/www/vhosts/it-stuff.at/public_html/wp-includes/rest-api.php(421): rest_get_server() #5 /var/www/vhosts/it-stuff.at/public_html/wp-includes/class-wp-hook.php(324): rest_api_loaded() #6 /var/www/vhosts/it-stuff.at/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #7 /var/www/vhosts/it-stuff.at/public_html/wp-includes/plugin.php(565): WP_Hook->do_action() #8 /var/www/vhosts/it-stuff.at/public_html/wp-includes/class-wp.php(418): do_action_ref_array() #9 /var/www/vhosts/it-stuff.at/public_html/wp-includes/class-wp.php(813): WP->parse_request() #10 /var/www/vhosts/it-stuff.at/public_html/wp-includes/functions.php(1336): WP->main() #11 /var/www/vhosts/it-stuff.at/public_html/wp-blog-header.php(16): wp() #12 /var/www/vhosts/it-stuff.at/public_html/index.php(17): require('...') #13 {main} thrown in /var/www/vhosts/it-stuff.at/public_html/wp-content/themes/dt-the7/inc/theme-setup.php on line 359