Using lower zoom levels causes errors like
[17:16:58] [Worker-Main-7/ERROR] [terrarium/]: Failed to download tile: https://data.lynxs.xyz/biome/7/24507/50146.png

This error happened with zoom level 3, but I've had similar issues with 8, 9 and 10.

I live in an EU country, so censorship isn't the issue. I tried opening those files in the browser, traversing the directories and they literally don't exist. Large numbers like 7/25028/49645.png are somehow being produced.