I get this message from paypal and I try to find how to solve this I rather new at this..Please check your server that handles PayPal Instant Payment Notifications (IPN). IPNs sent to the following URL(s) are failing:
Review your CBSubs documentation carefully. It sounds like you don't have PayPal and/or CBSubs Gateway configured properly. Also ensure if you're using some sort of Joomla security extension or server side security that it isn't blocking inbound connections from PayPal.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
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