I recently noticed an error in my apache logs:
PHP Fatal error: Call to a member function processIpnRequest()
on a non-object in /app/code/core/Mage/Paypal/controllers
/IpnController.php on line 43
I'm not sure what might be causing this issue, but it does seem to show up whenever a Paypal payment goes through the site (though the payments seem to go through successfully). Any thoughts on what might be causing it?