Perma link / category issue

Hello guys,

I have the following issues :

1) When I submit a question I get redirect to : "Oops! That page can’t be found." From what i can think of is due to the permalink created " /dwqa-question/fdsfads/ " where "fdsfads" is the question name.

2) Even if i see the submited questions in the answers page – i get " Oops! That page can’t be found." — similar to the above thing – same permalink …

3) I get an nothing found error when i click the folder which acutally is supposed to get you in the same category as the curent question that you see.

4) Error " not found" when i click on a category from the answers tab.

Thank you very much for your kind support.

Looking forward for your suggestions.

Cheers,
Andrei