I had Mitel SA&D installed and working on a Win 10 laptop. After I installed MS Office 365 as local app on the laptop, Mitel SA&D stopped working, with the database error message. Very frustrating.
I was able to fix the error by uninstalling O365, Mitel SA&D, and Office 2010 Access, rebooting, reinstalling Mitel SA&D. I did have to uninstall and reinstall a couple of times. When installing MS Office 2010 Access as part of Mitel SA&D, it did hang and wouldn't finish installing even when I waited fifteen minutes.
I haven't reinstalled MS O365. I wouldn't bet a penny Mitel SA&D would work If I reinstalled MS O365.
YMMV.
Jeff