Fatal error: Uncaught Error: Class 'WPMailSMTP\Core' not found in /wp-content/plugins/wp-mail-smtp/wp-mail-smtp.php:58 Stack trace: #0 /wp-content/plugins/wp-mail-smtp/wp-mail-smtp.php(64): wp_mail_smtp() #1 /wp-content/plugins/wp-mail-smtp/wp_mail_smtp.php(349): require_once('/wp-content/plu...') #2 /wp-settings.php(409): include_once('/wp-content/plu...') #3 /wp-config.php(107): require_once('/wp-settings.ph...') #4 /wp-load.php(50): require_once('/wp-config.php') #5 /wp-blog-header.php(13): require_once('/wp-load.php') #6 /index.php(17): require('/wp-blog-header...') #7 {main} thrown in /wp-content/plugins/wp-mail-smtp/wp-mail-smtp.php on line 58