Why does the entire screen glow blue on iPhone 6s after going through all the registration steps?

[Logkatya5]

Good afternoon. Help me please. I downloaded the Trello app, but I can't register. I have an iPhone 6s. After confirming the correctness of the specified Email in the mail, I am redirected to the Trello application and as if I entered the application, but after half a second the screen glows blue. Left it for 15 minutes, nothing happened. I tried different ways, and different mail, but nothing helps.

[Kristján Geir Mathiesen]

Hi @Logkatya5 

Oh boy, wonder what that is. And have you tried the classic "turn the phone off and on again"?

Is the IOS updated to the newest version -1?

HTH and best of luck,
KGM