PHP Fatal error call_user_func_array():

Replies: 0

Hi,

Since updating to PHP8 i am not able to connect to my SendLayer server through wp mail smtp.

i got the following error:

PHP Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function “mailsettings” not found or invalid function name in /www/indusigns_888/public/wp-includes/class-wp-hook.php:308

Stack trace:

#0 /www/indusigns_888/public/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)

#1 /www/indusigns_888/public/wp-includes/plugin.php(565): WP_Hook->do_action(Array)

#2 /www/indusigns_888/public/wp-includes/pluggable.php(536): do_action_ref_array(‘phpmailer_init’, Array)

#3 /www/indusigns_888/public/wp-content/plugins/wp-mail-smtp/src/Admin/Pages/TestTab.php(345): wp_mail(Array, ‘WP Mail SMTP: H…’, ‘\t\t<!doctype htm…’, Array)

#4 /www/indusigns_888/public/wp-content/plugins/wp-mail-smtp/src/Admin/ParentPageAbstract.php(265): WPMailSMTP\Admin\Pages\TestTab->process_post(Array)

#5 /www/indusigns_888/public/wp-includes/class-wp-hook.php(308): WPMailSMTP\Admin\ParentPageAbstract->process_actions(”)

#6 /www/indusigns_888/pu”