Article ID: 2761265 - View products that this article applies to.
When you try to open a file by using an Office Web App on a Microsoft SharePoint Server 2013 site, you receive the following error message:
Sorry, something went wrong
An error has occurred on the server.
Troubleshoot issues with Microsoft SharePoint Foundation.
Correlation ID: a79Dcc9b- lbS 1- 50e6- 6dff- 164a14296a0f
This issue occurs when you log on to the SharePoint Server 2013 by using a system account. Office Online require the SharePoint server to pass a user token on every request. However, SharePoint Server 2013 cannot create a user token for a system account.
To work around this issue, do not use a system account when you log on to a SharePoint Server 2013 site.