Outlook interface constantly logging

Outlook interface constantly logging

I have installed the Outlook plugin on my PC, however it either fails to login (no error message that password is incorrect or something, just blank screen where the plug in is) or after it logs in it logs back out after a few minutes. 
Very frustrating, i have tried this on 2 pcs, one running windows 7, the other windows 10 and the problem is the same for both

please advise

kind regards
Michael