Fatal error: Uncaught Error: Class "WP_REST_Revisions_Controller" not found in /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php:17
Stack trace:
#0 /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-settings.php(285): require()
#1 /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-config.php(83): require_once('/customers/8/e/...')
#2 /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-load.php(50): require_once('/customers/8/e/...')
#3 /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-blog-header.php(13): require_once('/customers/8/e/...')
#4 /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/index.php(17): require('/customers/8/e/...')
#5 {main}
  thrown in /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php on line 17

Fatal error: Uncaught Error: Call to a member function set() on null in /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-includes/l10n.php:856
Stack trace:
#0 /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-includes/l10n.php(959): load_textdomain('default', '/customers/8/e/...', 'de_DE')
#1 /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in /customers/8/e/e/snooze-hotelsoftware.de/httpd.www/wp-includes/l10n.php on line 856