Share Point 2013 App Model Auto Hosted App option was in Preview and it was discontinued on 30-June-2014,
Error: When you try to deploy AutoHosted App to your O365 it will give you following error
something went wrong error
Cause: Microsoft Announcement about AutoHosted App
Now you can covert the autohosted to Provider hosted app use the following MSDN link to convert your applications.
Solution:How to Convert AutoHosted App to ProviderHosted App
