Fatal error on specific email template

Hi, we’ve noticed PHP Fatal error when system tries sending out email from WP 2FA using Post SMTP, specifically email template “Your user on {site} has been locked”. Any other email template by WP 2FA is sent out just fine. Here’s a stack trace:

[21-Feb-2025 12:32:27 UTC] PHP Fatal error: Uncaught Error: Call to a member function getFromEmailAddress() on null in /var/www/vhosts/site.com/httpdocs/wp-content/plugins/post-smtp/Postman/PostmanWpMail.php:166
Stack trace:
#0 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/post-smtp/Postman/PostmanWpMail.php(149): PostmanWpMail->createNewMessage()
#1 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/post-smtp/Postman/PostmanWpMail.php(50): PostmanWpMail->processWpMailCall()
#2 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php(149): PostmanWpMail->send()
#3 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/class-settings-page.php(418): wp_mail()
#4 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Helpers/class-user-helper.php(1304): WP2FA\Admin\Settings_Page::send_email()
#5 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Helpers/class-user-helper.php(1398): WP2FA\Admin\Helpers\User_Helper::send_expired_grace_email()
#6 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Helpers/class-user-helper.php(2060): WP2FA\Admin\Helpers\User_Helper::lock_user_account_if_needed()
#7 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Helpers/class-user-helper.php(2167): WP2FA\Admin\Helpers\User_Helper::update_meta_if_necessary()
#8 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Helpers/class-user-helper.php(878): WP2FA\Admin\Helpers\User_Helper::set_proper_user()
#9 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Controllers/class-settings.php(252): WP2FA\Admin\Helpers\User_Helper::get_user_role()
#10 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Methods/class-email.php(89): WP2FA\Admin\Controllers\Settings::get_role_or_default_setting()
#11 /var/www/vhosts/site.com/httpdocs/wp-includes/class-wp-hook.php(324): WP2FA\Methods\Email::WP2FA\Methods\{closure}()
#12 /var/www/vhosts/site.com/httpdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#13 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/Controllers/class-methods.php(60): apply_filters()
#14 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/Admin/class-user-notices.php(43): WP2FA\Admin\Controllers\Methods::get_available_2fa_methods()
#15 /var/www/vhosts/site.com/httpdocs/wp-content/plugins/wp-2fa/includes/classes/class-wp2fa.php(232): WP2FA\Admin\User_Notices::init()
#16 /var/www/vhosts/site.com/httpdocs/wp-includes/class-wp-hook.php(324): WP2FA\WP2FA::init()
#17 /var/www/vhosts/site.com/httpdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#18 /var/www/vhosts/site.com/httpdocs/wp-includes/plugin.php(517): WP_Hook->do_action()
#19 /var/www/vhosts/site.com/httpdocs/wp-settings.php(559): do_action()
#20 /var/www/vhosts/site.com/httpdocs/wp-config.php(143): require_once('/var/www/vhosts...')
#21 /var/www/vhosts/site.com/httpdocs/wp-load.php(50): require_once('/var/www/vhosts...')
#22 /var/www/vhosts/site.com/httpdocs/wp-admin/admin.php(34): require_once('/var/www/vhosts...')
#23 /var/www/vhosts/site.com/httpdocs/wp-admin/index.php(10): require_once('/var/www/vhosts...')
#24 {main}
thrown in /var/www/vhosts/site.com/httpdocs/wp-content/plugins/post-smtp/Postman/PostmanWpMail.php on line 166

Please let us know if we can help with any additional details.