Outlook 14.6.0 seems to have provoked major identity/database issues  in Outlook 2011. At the first crash I was able to rebuild the database with the then running Main Identity. Since then this method has failed following new crashes. I have followed the forum advice on how to build a new identity and copy across the relevant Data files/folders but this is not working. I get consistent -18000 errors. My data folder is around 17GB and I have around 48GB of space on this Macbook (running Yosemite). Any ideas? 

Also - I have a recent backup on Time Machine (5 days old) which I will use if I have to, but I would like to have advice from this forum as to how best to proceed to avoid issues. 

Q: is it best to wind back to a previous version of Office 2011?

Many thanks

Alan