I'm finding I'm getting an intermittent permissions error in Word 365 (16.24) on MacOS Mojave (10.14.4).
I'll generally be able to open and save documents for a couple of hours - then, I'll get an error telling me I don't have the required permissions to open the document(s) I'm trying to access. I can't save the current document I'm working on either. These
are all documents that I have created - on the same Mac using Word 365 (usually within the last few days or weeks)
A restart helps with the issue - but only postpones it for another couple of hours. Plus I don't want to have to keep restarting!!
When I try to open a file I get the following popup:

After selecting to grant access I then get:

Then, after choosing the correct file and selecting 'grant access', I get:

Any help would be appreciated! I can obviously post more info if required.
Thank you.