Warning: Trying to access array offset on null in /www/struktoncom_519/public/wp-includes/cron.php on line 999

Fatal error: Uncaught TypeError: MailPoet\Config\Installer::authenticateReleaseRequests(): Argument #2 ($url) must be of type string, null given, called in /www/struktoncom_519/public/wp-includes/class-wp-hook.php on line 353 and defined in /www/struktoncom_519/public/wp-content/plugins/mailpoet/lib/Config/Installer.php:35 Stack trace: #0 /www/struktoncom_519/public/wp-includes/class-wp-hook.php(353): MailPoet\Config\Installer->authenticateReleaseRequests(Array, NULL) #1 /www/struktoncom_519/public/wp-includes/plugin.php(206): WP_Hook->apply_filters(Array, Array) #2 /www/struktoncom_519/public/wp-includes/class-wp-http.php(252): apply_filters('http_request_ar...', Array, NULL) #3 /www/struktoncom_519/public/wp-includes/class-wp-http.php(639): WP_Http->request(NULL, Array) #4 /www/struktoncom_519/public/wp-includes/http.php(210): WP_Http->post(NULL, NULL) #5 /www/struktoncom_519/public/wp-includes/cron.php(999): wp_remote_post(NULL, NULL) #6 /www/struktoncom_519/public/wp-includes/cron.php(1082): spawn_cron(1790319405.9504) #7 /www/struktoncom_519/public/wp-includes/class-wp-hook.php(353): _wp_cron('') #8 /www/struktoncom_519/public/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters(NULL, Array) #9 /www/struktoncom_519/public/wp-includes/plugin.php(523): WP_Hook->do_action(Array) #10 /www/struktoncom_519/public/wp-includes/load.php(1308): do_action('shutdown') #11 [internal function]: shutdown_action_hook() #12 {main} thrown in /www/struktoncom_519/public/wp-content/plugins/mailpoet/lib/Config/Installer.php on line 35