Fatal error: Uncaught TypeError: Argument 1 passed to timetable_phpmailer_init() must be an instance of PHPMailer, instance of PHPMailer\PHPMailer\PHPMailer given, called in /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-includes/class-wp-hook.php on line 287 and defined in /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-content/plugins/timetable/timetable.php:187 Stack trace: #0 /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-includes/class-wp-hook.php(287): timetable_phpmailer_init(Object(PHPMailer\PHPMailer\PHPMailer)) #1 /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #2 /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-includes/plugin.php(544): WP_Hook->do_action(Array) #3 /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-includes/pluggable.php(496): do_action_ref_array('phpmailer_init', Array) #4 /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-content/plugins/better-wp-security/core in /var/www/vhosts/bfhffxmb.host212.checkdomain.de/htdocs/wp-content/plugins/timetable/timetable.php on line 187
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