Authnetsim plugin No emails or status update

I am using EventBooking 1.6.8, with the authnetsim plugin. I have eb_authnetsim_notify.php located in the root of my web site. I have the Authorize.net Silent Post url is set to this file on my domain. The authnetsim_logs.txt file is being updated with transaction information when a credit card is processed on Authorize.Net. It appears the Silent Post is working correctly but the function verifyPayment in os_authnetsim.php is not being executed. The Registrant record is not updated with published =1 or payment_date. No emails are sent to the user.

Hi Peter

Could you please submit a support ticket sending us super admin account of your site so that I can check the log to see what's wrong and get it corrected ?

Regards,

Tuan