Error 500 - Link List
Issue:
https://www.explorius.se/Prices-and-information/How-it-works/Information-meetings and https://www.explorius.fi/Prices-and-information/How-it-works/Information-meetings had Error 500.
Solution:
On the "/sitecore/content/ISO/Explorius/Home/Prices-and-information/How-it-works/Information-meetings" item, there was a Link List rendering item, which was linked to the "/sitecore/content/ISO/Explorius/Global/Reusable Items/Link List Items/Informationsmoede" item, but the "Informationsmoede" item doesn't have any Sweden or Finnish language version.
I added an empty language version, but if you would like to use it, you need to set the "Links" field (like on the image I've attached) or create children items.