ArttuK on "Polylang ruining font in second language"

Hi!
I'm using Parabola-theme and polylang. Everything was great, until I found out that my English-site uses this shitty-looking font. I've been trying to fix this for 3 hours now, but I guess I'm just too stupid for this. I even deleted the plugin and the theme, and started from scratch. It happened after installing Polylang
http://pinktravels.net

https://wordpress.org/plugins/polylang/