i got this bug when i enable DEBUG mode, i think it problem with send mail to member that expired membership for osclass pay in mail.php osc_sendMail($emailParams); .
when i delete osclass pay plugin site work fine, please help to check it .
Fatal error: Uncaught Error: Class 'SMTP' not found in /home/oc-includes/phpmailer/class.phpmailer.php:1522 Stack trace:
#0 public_html/oc-includes/phpmailer/class.phpmailer.php(1605): PHPMailer->getSMTPInstance()
#1 public_html/oc-includes/phpmailer/class.phpmailer.php(1542): PHPMailer->smtpConnect(Array)
#2 public_html/oc-includes/phpmailer/class.phpmailer.php(1337): PHPMailer->smtpSend('Date: Tue, 22 J...', '<table class="m...') #3 public_html/oc-includes/phpmailer/class.phpmailer.php(1215): PHPMailer->postSend()
#4 public_html/oc-includes/osclass/utils.php(455): PHPMailer->send()
#5 public_html/oc-content/plugins/osclass_pay/email.php(220): osc_sendMail(Array)
#6 public_html/oc-content/plugins/osclass_pay/model/ModelOSP.php(1266): osp_email_expired_membership(Array, Array)
#7 public_html/oc-content/plugins/osclass_pay/index.php(620): ModelOSP->purgeExpired()
#8 public_html/oc-includes/phpmailer/class.phpmailer.php on line 1522