Warning: Cannot declare class PHPMailer, because the name is already in use in /home/odc7/public_html/wp-includes/class-phpmailer.php on line 18

Warning: Cannot declare class phpmailerException, because the name is already in use in /home/odc7/public_html/wp-includes/class-phpmailer.php on line 19

Fatal error: Cannot declare class PHPMailer\PHPMailer\SMTP, because the name is already in use in /home/odc7/public_html/wp-includes/PHPMailer/SMTP.php on line 30