Fatal error: Uncaught Error: Undefined constant "WPMailSMTP\WPMS_PLUGIN_FILE" in /srv/users/nauticali/apps/nautical-icubes/public/wp-content/plugins/wp-mail-smtp/src/Core.php:112 Stack trace: #0 /srv/users/nauticali/apps/nautical-icubes/public/wp-content/plugins/wp-mail-smtp/src/Core.php(79): WPMailSMTP\Core->hooks() #1 /srv/users/nauticali/apps/nautical-icubes/public/wp-content/plugins/wp-mail-smtp/wp-mail-smtp.php(58): WPMailSMTP\Core->__construct() #2 /srv/users/nauticali/apps/nautical-icubes/public/wp-content/plugins/wp-mail-smtp/wp-mail-smtp.php(64): wp_mail_smtp() #3 /srv/users/nauticali/apps/nautical-icubes/public/wp-settings.php(589): include_once('/srv/users/naut...') #4 /srv/users/nauticali/apps/nautical-icubes/public/wp-config.php(33): require_once('/srv/users/naut...') #5 /srv/users/nauticali/apps/nautical-icubes/public/wp-load.php(50): require_once('/srv/users/naut...') #6 /srv/users/nauticali/apps/nautical-icubes/public/wp-blog-header.php(13): require_once('/srv/users/naut...') #7 /srv/users/nauticali/apps/nautical-icubes/public/index.php(17): require('/srv/users/naut...') #8 {main} thrown in /srv/users/nauticali/apps/nautical-icubes/public/wp-content/plugins/wp-mail-smtp/src/Core.php on line 112