I have had a similar message today but code 30088-26. I recently bought a new PC with Windows8. This included a free 1 month trial of Office365 which I downloaded. Everything worked fine. Since then I have repeatedly been encouraged to
upgrade to Windows8.1...so eventually today I did. Sometime today Microsoft automatically started installing some updates and I got the message
'Error: Something went wrong. Sorry we ran into a problem. Try going online for additional help. Office error code 30088-26 '.
I spent a lot of time in these forums before eventually finding my way to 'Office.com'. My problem was solved by uninstalling and reinstalling.
Go to Office.com - Support - Installation Help and click on 'Error: Something went wrong etc.'.
I tried online repair with no result and eventually used 'Fix It' and reinstalled from Office.com/myaccount . Hope this helps somebody.