Continued problems with Outlook 2011 and El Capitan, cannot get local email folders back

Hi, I've followed all the advice I can find on trying to remedy the mail problems with El Capitan, but cannot get my local email folders back showing. I am on the latest updates: Outlook 2011 14.6.3 and El Capitan 10.11.3, on a 15" MacBook Pro using Windows for Mac.

I use Outlook for work email and shift all of the IMAP messages coming in to my @xxxx.ac.uk (work) account into a local inbox to store them on the computer, and so I can file them more easily. When I first updated to El Capitan there was no problem, and then a few hours later the local email folders where I store everything disappeared and I cannot get them back. I've looked to all the advice so far, does anyone have any fixes?

Thanks

Alex