Fatal error: Uncaught TypeError: Argument 1 passed to gb_phpmailer_init() must be an instance of PHPMailer, instance of PHPMailer\PHPMailer\PHPMailer given, called in /www/htdocs/w01968b1/mamafitnesswien.at/wp-includes/class-wp-hook.php on line 287 and defined in /www/htdocs/w01968b1/mamafitnesswien.at/wp-content/themes/gymbase/functions.php:653 Stack trace: #0 /www/htdocs/w01968b1/mamafitnesswien.at/wp-includes/class-wp-hook.php(287): gb_phpmailer_init(Object(PHPMailer\PHPMailer\PHPMailer)) #1 /www/htdocs/w01968b1/mamafitnesswien.at/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters('', Array) #2 /www/htdocs/w01968b1/mamafitnesswien.at/wp-includes/plugin.php(544): WP_Hook->do_action(Array) #3 /www/htdocs/w01968b1/mamafitnesswien.at/wp-includes/pluggable.php(494): do_action_ref_array('phpmailer_init', Array) #4 /www/htdocs/w01968b1/mamafitnesswien.at/wp-content/plugins/ithemes-security-pro/core/lib/class-itsec-mail.php(624): wp_mail(Array, '[mamafitnesswie...', '\n<!DOCTYPE html...', Array, Array) #5 /www/htdocs/w in /www/htdocs/w01968b1/mamafitnesswien.at/wp-content/themes/gymbase/functions.php on line 653