"Sorry, something went wrong" when you click an InfoPath form in mobile view in SharePoint Online
On a mobile device, you browse to a forms library that contains a published InfoPath form. When you click the form, you receive the following error message:
Sorry, something went wrong. An unexpected error has occurred.
To work around this issue, use full-screen view (also known as PC view) on your mobile device, and then click the InfoPath form to open it.
For more information about full-screen view, see Use a mobile device to work with SharePoint Online sites.
In this scenario, you may have to browse to another list or library to find the option to switch to full-screen view.
This is a known issue in SharePoint Online.
Still need help? Go to Microsoft Community.