A special character used in Old Norse doesn't display in the site's font. The character is called "o caudata" (latin name) meaning "tailed o". It can also be called "o with ogonek" (ogonek means "little tail" in Polish). This little tail added underneath letters (from the Latin script) is still used in some modern languages (Polish being an example), however, it's implemented in other letters, which are supported by most fonts (in "e" and "i", which are "ę" and "į").
The tailed o may be important for the site because of Viking metal and its Old Norse applications, being it on band names, album or song titles, or even lyrics.
More information about the character: https://en.m.wiktionary.org/wiki/ǫ

Works fine for me. https://www.metal-archives.com/albums/% ... %B0/286591

I'm guessing the issue isn't the site, but your browser/device.

Thanks for the heads-up. Maybe it's because I'm using a tablet. Is there any way of fixing it though?