Hi @flaneuring,
This message indicates that some kind of error happened during the rendering of that 4th referrer. Your PHP error log should have a more detailed error message, telling us what exactly went wrong. If you have access to that then that would be really helpful.
Best,
Danny
Hi @flaneuring,
I believe to have spotted the issue by looking at the relevant code. It only occurs when you have referrer traffic from the t.co
domain. It should be fixed in version 1.4.2.
Let me know if the issue persists after updating please.
Best,
Danny