Warning: require_once(/wp-includes/class-phpmailer.php): failed to open stream: Permission denied in /wp-content/plugins/wp-mail-smtp/src/MailCatcher.php on line 7

Fatal error: require_once(): Failed opening required '//wp-includes/class-phpmailer.php' (include_path='.:/:/usr/local/php74/lib/pear') in /wp-content/plugins/wp-mail-smtp/src/MailCatcher.php on line 7