Google Analytics + plugin sometimes doesn't display stats

Hi! Sometimes, when I click on the GA+ dashboard button to view my stats, I get a message that there have been too many requests or something. It's not happening at this moment, so I can't get a snip of the error. Have you heard of this problem? What is causing it and how can it be fixed? As far as I know, we are not making an unusual number of requests for stats from the system. Does loading the WP dashboard causing a request at Google and is that causing this? Thank you!
Heather