Background of the issue:
I have just found out that all the links in my sidebar have been changed. Instead of hidden link, the link is now hidden link. The latter page does not exist in Danish, which is my site's primary language. I have not changed anything, so I need help to fix this. The issue can be seen on hidden link.
Symptoms:
All sidebar links have changed to a non-existent page in the primary language.
Questions:
Why have the links in my sidebar changed?
How can I fix the links to point to the correct pages?
