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 /homepages/25/d718059351/htdocs/backup/app802573476/wp-includes/class-wp-hook.php on line 307 and defined in /homepages/25/d718059351/htdocs/backup/app802573476/wp-content/plugins/timetable/timetable.php:232 Stack trace: #0 /homepages/25/d718059351/htdocs/backup/app802573476/wp-includes/class-wp-hook.php(307): timetable_phpmailer_init(Object(PHPMailer\PHPMailer\PHPMailer)) #1 /homepages/25/d718059351/htdocs/backup/app802573476/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #2 /homepages/25/d718059351/htdocs/backup/app802573476/wp-includes/plugin.php(522): WP_Hook->do_action(Array) #3 /homepages/25/d718059351/htdocs/backup/app802573476/wp-includes/pluggable.php(538): do_action_ref_array('phpmailer_init', Array) #4 /homepages/25/d718059351/htdocs/backup/app802573476/wp-content/plugins/better-wp-security/core/lib/class-itsec-mail in /homepages/25/d718059351/htdocs/backup/app802573476/wp-content/plugins/timetable/timetable.php on line 232