O365 Login through iOS issue

When trying to login to the Appsheet app on my iPhone (version 12.2) I choose the Office 365 authentication method as this is how i set the app up on my computer.

I enter my email address twice as required, the screen says “taking you to your organization’s sign-in page” and then the screen just goes white.

I have had my company IT people check it out and everything is fine as far as logging in goes and I can login to my Appsheet account on my PC.

Would really like some help to test out the app on my device any help is appreciated.