i can't access to my icloud on my iphone, why gives me a message Verification Failed?

Hello, khaled new cairo.

Thank you for visiting Apple Support Communities.

I understand that you are unable to access your iCloud account data on your iPhone. I would need clarification on where you are attempting to view your iCloud information when receiving this error to provide a better answer. However, here are some troubleshooting steps that may help resolve this issue.

iCloud: Account troubleshooting

If this article does not help resolve the issue, see the section labeled Additional information.

-Jason H.