permalinks problems

I have some major problems with permalinks.

If i click to a category for example

https://www.website.com/travel-q-a/question-category/europe-travel-questions/

i go to

https://www.website.com/travel-q-a/

and the whole page is a mess. Seems like a redirect or something.

https://www.ads-software.com/plugins/dw-question-answer/