Cannot watch Fox News

I would urge you to not cancel the trial subscription. You cannot undo that and start it all over again.

Have you tried signing into Fox News on the Fox News app? It may be dependent on that. I have to sign into all of the TV apps with my cable provider credentials before the content is available even though I already subscribe to all of the TV channels that I want to watch through Apple TV +.

I get the Open In option when I select something in Fox News in the Apple TV + app.

Nope.

You can pay for subscription if you enroll in it again.

You need to understand, this is a user to user support forum and Apple does not participate here. This is all volunteer, and a user needs to first see your post, then read the post, and respond if they have an answer. If you are receiving an error when attempting to use the trial subscription to Apple TV+, your best to contact Apple Support for an answer. To get to Apple, use the Contact Support link at the top of the page here, or if you live close to an Apple Store, you can make a Genius Bar appointment there to get assistance.

No problems, you didn't ruffle anything, just wanted you to not make any harsh decisions about a trial, since I know they don't repeat the offer, and why you may not have gotten a response. While Apple hosts this forum, the only Apple people here are moderators/hosts that help to ensure that the Terms of Service are kept, and the site keeps working. Hope you are able to get everything working.