it is a good app.
It is indeed, far and away the best of its type in my opinion, but like you say, so much trouble at the moment. Mine is working properly now and has been for a few weeks, the last thing I had to do with it was the fix given here: viewtopic.php?f=42&t=121540&hilit=fixing+checkgmail&start=20#p697567
but I wasn't getting the same error as you, so I doubt that is the one you are looking for. I hope it isn't yet another new one
The problem is that google keep changing things, tell nobody, and break stuff like checkgmail (probably deliberately because they don't like gmail checkers as they can't spam you and spy on you so easily when you use them). The other trouble is that whoever maintains the program doesn't seem to do much with it and all these fixes come from end users, which all takes a lot of time.
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