Fatal error: Uncaught TypeError: preg_replace(): Argument #1 ($pattern) must be of type array when argument #2 ($replacement) is an array, string given in /var/www/psp/web/app/plugins/ithemes-security-pro/core/lib.php:956
Stack trace:
#0 /var/www/psp/web/app/plugins/ithemes-security-pro/core/lib.php(956): preg_replace()
#1 /var/www/psp/web/app/plugins/ithemes-security-pro/core/lib.php(969): ITSEC_Lib::replace_tag()
#2 /var/www/psp/web/app/plugins/ithemes-security-pro/core/lib/class-itsec-mail.php(938): ITSEC_Lib::replace_tags()
#3 /var/www/psp/web/app/plugins/ithemes-security-pro/core/lib/class-itsec-mail.php(322): ITSEC_Mail->replace_all()
#4 /var/www/psp/web/app/plugins/ithemes-security-pro/core/notify.php(156): ITSEC_Mail->add_lockouts_summary()
#5 /var/www/psp/web/wp/wp-includes/class-wp-hook.php(353): ITSEC_Notify->send_daily_digest()
#6 /var/www/psp/web/wp/wp-includes/plugin.php(206): WP_Hook->apply_filters()
#7 /var/www/psp/web/app/plugins/ithemes-security-pro/core/modules/notification-center/class-notification-center.php(845): apply_filters()
#8 /var/www/psp/web/app/plugins/ithemes-security-pro/core/modules/notification-center/class-notification-center.php(795): ITSEC_Notification_Center->send_scheduled_notification()
#9 /var/www/psp/web/app/plugins/ithemes-security-pro/core/modules/notification-center/class-notification-center.php(766): ITSEC_Notification_Center->send_scheduled_notifications()
#10 /var/www/psp/web/app/plugins/ithemes-security-pro/core/modules/notification-center/class-notification-center.php(722): ITSEC_Notification_Center->check_notification_schedule_accurate()
#11 /var/www/psp/web/wp/wp-includes/class-wp-hook.php(353): ITSEC_Notification_Center->check_notification_schedule_fast()
#12 /var/www/psp/web/wp/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters()
#13 /var/www/psp/web/wp/wp-includes/plugin.php(523): WP_Hook->do_action()
#14 /var/www/psp/web/wp/wp-settings.php(779): do_action()
#15 /var/www/psp/web/wp-config.php(10): require_once('...')
#16 /var/www/psp/web/wp/wp-load.php(55): require_once('...')
#17 /var/www/psp/web/wp/wp-blog-header.php(13): require_once('...')
#18 /var/www/psp/web/index.php(7): require('...')
#19 {main}
thrown in /var/www/psp/web/app/plugins/ithemes-security-pro/core/lib.php on line 956