An HTTP 500 error is usually a bug in the website. It would be unrelated to the topic of this thread, which was about map tiles showing “blocked” error. To diagnose your issue, we’ll need more information, such as the exact URL you were trying to access, your interface language (Polish?), and whether you were logged in. Best if you could provide this information in a new GitHub issue.
Can you explain in a bit more detail what is happening immediately before this message appears?
- are you on a pc or a phone, or something else? What sort?
- what url, exactly, did you try and browse to?
- where in the world were you when this happened?
Website tries to load and this shows up. Fixed by now.
Edit: openstreetmap.org, pc (brave browser), Poland