Fatal error: Uncaught Error: Class 'WP_Block_Supports' not found in /mnt/web122/a3/12/54281512/htdocs/2017/wp-includes/block-supports/align.php:59
Stack trace:
#0 /mnt/web122/a3/12/54281512/htdocs/2017/wp-settings.php(374): require()
#1 /mnt/web122/a3/12/54281512/htdocs/2017/wp-config.php(89): require_once('/mnt/web122/a3/...')
#2 /mnt/web122/a3/12/54281512/htdocs/2017/wp-load.php(50): require_once('/mnt/web122/a3/...')
#3 /mnt/web122/a3/12/54281512/htdocs/2017/wp-blog-header.php(13): require_once('/mnt/web122/a3/...')
#4 /mnt/web122/a3/12/54281512/htdocs/2017/index.php(17): require('/mnt/web122/a3/...')
#5 {main}
  thrown in /mnt/web122/a3/12/54281512/htdocs/2017/wp-includes/block-supports/align.php on line 59

Fatal error: Uncaught Error: Call to a member function set() on null in /mnt/web122/a3/12/54281512/htdocs/2017/wp-includes/l10n.php:857
Stack trace:
#0 /mnt/web122/a3/12/54281512/htdocs/2017/wp-includes/l10n.php(960): load_textdomain()
#1 /mnt/web122/a3/12/54281512/htdocs/2017/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in /mnt/web122/a3/12/54281512/htdocs/2017/wp-includes/l10n.php on line 857