The tracker is returning error 204:
204 – IP Address is blacklisted. This visitor’s IP address matches one of the filters in the blacklist.
https://slimstat.freshdesk.com/solution/articles/5000650179-how-do-i-interpret-error-codes-returned-by-the-tracker-
Is your server behind a firewall using IPv6?
I don’t know. I haven’t changed a thing, so maybe my provider changed something?
I do have my own IP and name in the blacklist to prevent the tracker from showing me.
And you’re not using any caching plugins, right? Can you contact our support to further investigate? Send us the string you use in your blacklist field, so that we can see if that is the cause.
Camu
I’m marking this thread resolved, as we are continuing the conversation on our support area.