When attempting to sign into the Mobile OneDrive app, you receive an error:
"An error occurred. Contact your administrator for more information".
There are few resolutions to address the issue:
How to troubleshoot issues that you encounter when you sign in to Office apps for Mac, iPad, iPhone, or iPod Touch when using Active Directory Federation Services
If you are federated, yet your federated account in SPO is listing you as “In Cloud”, it is possible you have an orphaned account due to DirSync unable to link the accounts properly.
Written by: Ian Kavanagh