Over on Coinos did you click to save the settings after setting up the new NWC connection?
Discussion
When I hit save it gives me this 
So yeah in Coinos you need to "sign" the action so that Coinos knows you are authorizing the creation of this NWC key. The simplest way to do this is to jus t pase nor nSec or Nostr secret key. This is not the most secure however.
Using Nostr connect, or what I use Alby is a safer method, kind of like having a hardware wallet that signs Bitcoin transactions offline for you.
For now I would just use your secret key but maybe explore the other options at some point.
Do NOT use it on the one you just sent the screenshots of however, delete that one and create a whole new NWC in Coinow. You want to keep that QR code / key safe, don't show it to anyone.
Oh ok I think I’ll just use Alby and go that route. Did I mess up screen shorting that!?!
As long as you don't sign to allow the NWC you screenshotted you'll be fine. Just delete it and make a new one.
Ok will do. Thank you so much for help. I just want to zap people!!
Then when I hit sign, it gives me this 