How do I fix 'iPhone 89% corrupted' error while streaming?

You don't have any corruption on your phone, it is a scam message designed to get you to purchase unnecessary software or phish for personal information.

Read more about it here -

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Apple-support.com isn't even a valid web address

Servant of Cats wrote:

The domain name may have been grabbed by a squatter who has no real use for it themselves, other than to hope someone will pay them an outrageous price for a “good” name.

Oh! So the website under that name is just a form for its resale. Very interesting. Thank you!

It cost over a thousand dollars to purchase a domain name??

The domain name may have been grabbed by a squatter who has no real use for it themselves, other than to hope someone will pay them an outrageous price for a “good” name.