Error (401) Unauthorized for GET users/show


I keep getting unauthorized error when I try to make request like{userID} or{statusName}.

I have set the authorization and base string according to OAuth tool result for the specific request, the user I’m searching for is the one I follow.

I also try with GET users/lookup, but I get the same error.

The interesting part is that I can make GET search/tweets and GET users/search with the same authorization.

Can you please help me, what can be the problem, because I really have no idea.

Thank you.