Cannot access 'My Maps' Archived · read-only

Whenever I click 'My maps', it says '500 Internal server error', and near the bottom it says 'Apache/2.4.6 (Ubuntu) Server at https://web.archive.org/web/2020/http://www.minecraftworldmap.com Port 80'.

What is this and how to I fix it?

I can get to my maps, but I received the HTTP. Error: 500 (Similar to your error) when uploading a map.
The error is usually on the server's end.