Fatal error: Uncaught Error: Class 'WP_Block_Supports' not found in /usr/www/users/salonbstyf/wp-content/plugins/gutenberg/lib/block-supports/generated-classname.php:59 Stack trace: #0 /usr/www/users/salonbstyf/wp-content/plugins/gutenberg/lib/load.php(117): require() #1 /usr/www/users/salonbstyf/wp-content/plugins/gutenberg/gutenberg.php(213): require_once('/usr/www/users/...') #2 /usr/www/users/salonbstyf/wp-content/plugins/gutenberg/gutenberg.php(20): gutenberg_pre_init() #3 /usr/www/users/salonbstyf/wp-settings.php(377): include_once('/usr/www/users/...') #4 /usr/www/users/salonbstyf/wp-config.php(89): require_once('/usr/www/users/...') #5 /usr/www/users/salonbstyf/wp-load.php(37): require_once('/usr/www/users/...') #6 /usr/www/users/salonbstyf/wp-blog-header.php(13): require_once('/usr/www/users/...') #7 /usr/www/users/salonbstyf/index.php(17): require('/usr/www/users/...') #8 {main} thrown in /usr/www/users/salonbstyf/wp-content/plugins/gutenberg/lib/block-supports/generated-classname.php on line 59