Can not login to NEM wallet on Windows 10

Hello,
I can not seem to login to my wallet. I used to just put in a password and now it asks for a local wallet. I dont know where to find this. I never saw this before. Can someone help me?

If you removed your wallet from local storage (for example by clear cache) then you can restore wallet only using private key or wallet file (wlt extension) which you should backup during wallet creation. You have wallet file or private key?