Fatal error: Uncaught Error: Call to undefined method WP_Textdomain_Registry::init() in /srv/users/serverpilot/apps/swimming-pool/public/wp-settings.php:419
Stack trace:
#0 /srv/users/serverpilot/apps/swimming-pool/public/wp-config.php(49): require_once()
#1 /srv/users/serverpilot/apps/swimming-pool/public/wp-load.php(50): require_once('/srv/users/serv...')
#2 /srv/users/serverpilot/apps/swimming-pool/public/wp-blog-header.php(13): require_once('/srv/users/serv...')
#3 /srv/users/serverpilot/apps/swimming-pool/public/index.php(19): require('/srv/users/serv...')
#4 {main}
thrown in /srv/users/serverpilot/apps/swimming-pool/public/wp-settings.php on line 419