I'm going to chime in on this topic because this problem has been bothering me for 2 years now. And I have very carefully followed the entire instructions on using App Cleaner to remove it and reinstall it, etc. In fact I've had to do that about 3-4 times now. It only works for a few weeks to maybe a couple of months and then the problem comes back. I don't know what triggers it to come back.
I'm at a loss, because if I open another ticket with them, they're just going to tell me to do the exact same thing I've already done again and again. And yes, if I do that again, the problem will appear to go away. But for me it's always temporary.
It would be one thing if the error came up in the background just ONCE, but the error will pop up over everything else I'm doing, sitting on top of all windows, 5-6 times in a session, maybe once or twice A DAY! Even without the application running. It's like the thing is designed just to annoy you. I could be using my computer to record a presentation with a screenshare and BLAM! the error pops up and destroys the whole thing.
I cannot live with this problem much longer. I am making designs to possibly switch to OneNote. Which I dread, because OneNote is hinged on OneDrive, and OneDrive is not my cloud solution (I use Dropbox and I have no intention of changing it). If both OneDrive and Dropbox are permitted on my computer the two start competing for system resources, so I prefer only one of these solutions. I exorcised OneDrive and iCloud from my computer a long time ago. Evernote has its own sync system that works pretty well and doesn't seem to cause me any problems. And I have a HUGE amount of data in Evernote. I really hate the idea of switching, but this bug is giving me no choice. They are not fixing it.