pippin09

Thanh you very much @sanzeeb3 .

We have checked and the plugin works now.

Dear all,

I have updated php and gotten the same error:

Fatal error: Uncaught Error: Argument 1 passed to wpse8170_phpmailer_init() must be an instance of PHPMailer, instance of WPMailSMTP\MailCatcherV6 given, called in /home1/buaancan/public_html/wp-includes/class-wp-hook.php on line 287
in /home1/buaancan/public_html/wp-content/themes/vsante_2017/functions.php on line 864

Call stack:

wpse8170_phpmailer_init()
wp-includes/class-wp-hook.php:287
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:311
WP_Hook::do_action()
wp-includes/plugin.php:551
do_action_ref_array()
wp-includes/pluggable.php:494
wp_mail()
wp-content/plugins/wp-mail-smtp-pro/src/Admin/Pages/TestTab.php:198
WPMailSMTP\A\P\TestTab::process_post()
wp-content/plugins/wp-mail-smtp-pro/src/Admin/Area.php:866
WPMailSMTP\A\Area::process_actions()
wp-includes/class-wp-hook.php:287
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:311
WP_Hook::do_action()
wp-includes/plugin.php:484
do_action()
wp-admin/admin.php:175

The email set up is ok but I get error when clicking sending test email.

Here is the list of plugins activated on my website:
Advanced Custom Fields PRO
Autoptimize
Captcha
CF7 Google Sheet Connector
Contact Form 7
Far Future Expiration Plugin
MC4WP: Mailchimp for WordPress
Query Monitor
Really Simple SSL
Remove Query Strings From Static Resources
Smush Pro
SSL Insecure Content Fixer
UpdraftPlus – Backup/Restore
WooCommerce
WP Mail SMTP Pro
WP-Optimize – Clean, Compress, Cache
WPForms

Could anyone have an idea where the error comes form?

Thanks!