Dump FILENAME.xml.gz is not completed yet, please come back later.
Since around Dec. 25th 2019, 6:22 UTC, I had generated a xml data dump and waited for the dump file being completed. However, it took several hours and even now and it still says it's not completed yet.
The diav.miraheze.org wiki is extremely small that usually makes around 4.5MB sized xml (0.99MB when compressed in gz file), and I had no problem making xml dump files until then.
Also, I tried to delete that stuck request but I can't seem delete it away. The message says I successfully removed it but it still stays in the list.
I wish that stuck dump request to be removed so I may dump xml files normally.