We've gotten the dreaded 'PayPal Instant Payment Notification Warning'. BUT the script is returning valid information to the server (customers are getting their password and login information and their info is being correctly logged - including their transaction info) even though the IPN History has the script in 'retrying' and the PayPal IPN test comes up with a 500 error. This script was working correctly on a different server and the TLS settings are correct (otherwise the customer info would not be being logged by the script). No errors related to this script are being passed to any server error logs.
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