Fatal error: Uncaught Error: Call to undefined function PHPMailer\PHPMailer\mail() in /home/c1620306/public_html/wp-includes/PHPMailer/PHPMailer.php:880
Stack trace:
#0 /home/c1620306/public_html/wp-includes/PHPMailer/PHPMailer.php(1968): PHPMailer\PHPMailer\PHPMailer->mailPassthru('no-reply@c16203...', '=?us-ascii?Q?[e...', '=0A<!DOCTYPE ht...', 'Date: Wed, 11 D...', NULL)
#1 /home/c1620306/public_html/wp-includes/PHPMailer/PHPMailer.php(1691): PHPMailer\PHPMailer\PHPMailer->mailSend('Date: Wed, 11 D...', '=0A<!DOCTYPE ht...')
#2 /home/c1620306/public_html/wp-includes/PHPMailer/PHPMailer.php(1523): PHPMailer\PHPMailer\PHPMailer->postSend()
#3 /home/c1620306/public_html/wp-includes/pluggable.php(546): PHPMailer\PHPMailer\PHPMailer->send()
#4 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/lib/class-itsec-mail.php(727): wp_mail(Array, '[espiga.com.ar]...', '\n<!DOCTYPE html...', Array, Array)
#5 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/modules/notification-center/class-notification-center.php(532): ITSEC_Mail->send()
#6 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/modules/site-scanner/mail.php(24): ITSEC_Notification_Center->send('malware-schedul...', Object(ITSEC_Mail))
#7 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/modules/malware-scheduling/class-itsec-malware-scheduling-scanner.php(73): ITSEC_Site_Scanner_Mail::send(Object(iThemesSecurity\Site_Scanner\Scan))
#8 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/modules/malware-scheduling/class-itsec-malware-scheduling-scanner.php(31): ITSEC_Malware_Scheduling_Scanner::send_email(Object(iThemesSecurity\Site_Scanner\Scan))
#9 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/modules/malware-scheduling/class-itsec-malware-scheduling.php(29): ITSEC_Malware_Scheduling_Scanner::scan()
#10 /home/c1620306/public_html/wp-includes/class-wp-hook.php(324): ITSEC_Malware_Scheduling->run_scan(Object(ITSEC_Job))
#11 /home/c1620306/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array)
#12 /home/c1620306/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#13 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/lib/class-itsec-scheduler.php(383): do_action('itsec_scheduled...', Object(ITSEC_Job))
#14 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/lib/class-itsec-scheduler-page-load.php(261): ITSEC_Scheduler->call_action(Object(ITSEC_Job))
#15 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/lib/class-itsec-scheduler-page-load.php(233): ITSEC_Scheduler_Page_Load->run_recurring_event('malware-scan')
#16 /home/c1620306/public_html/wp-content/plugins/ithemes-security-pro/core/lib/class-itsec-scheduler-page-load.php(184): ITSEC_Scheduler_Page_Load->run_due_now()
#17 /home/c1620306/public_html/wp-includes/class-wp-hook.php(324): ITSEC_Scheduler_Page_Load->init('')
#18 /home/c1620306/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#19 /home/c1620306/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#20 /home/c1620306/public_html/wp-settings.php(704): do_action('init')
#21 /home/c1620306/public_html/wp-config.php(116): require_once('/home/c1620306/...')
#22 /home/c1620306/public_html/wp-load.php(50): require_once('/home/c1620306/...')
#23 /home/c1620306/public_html/wp-blog-header.php(13): require_once('/home/c1620306/...')
#24 /home/c1620306/public_html/index.php(17): require('/home/c1620306/...')
#25 {main}
thrown in /home/c1620306/public_html/wp-includes/PHPMailer/PHPMailer.php on line 880