Fatal error: Uncaught Error: Call to undefined function Smush\Core\register_rest_field() in /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-content/plugins/wp-smushit/core/class-rest.php:43 Stack trace: #0 /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-includes/plugin.php(524): Smush\Core\Rest->register_smush_meta(Object(WP_REST_Server)) #1 /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-includes/rest-api.php(294): do_action('rest_api_init', Object(WP_REST_Server)) #2 /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-includes/rest-api.php(144): rest_get_server() #3 /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-includes/plugin.php(600): rest_api_loaded(Object(WP)) #4 /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-includes/class-wp.php(386): do_action_ref_array('parse_request', Array) #5 /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-includes/class-wp.php(725): WP->pars in /var/www/u0860736/data/www/xn----7sbjbjfmwhhncb0bpd0a5e2h.xn--p1ai/wp-content/plugins/wp-smushit/core/class-rest.php on line 43