Sometimes, when Collabspot releases a new update your old cache may cause disruption with the new update which causes Gmail to refresh repeatedly. To do a quick fix, please try the steps below:

Clearing Cache and Cookies

1. In your address bar, paste this link " chrome://settings/clearBrowserData "

2. Select "Cookies.. and Cached images.." checkboxes

3. Hit Clear browsing data button

4. Restart Chrome and Gmail.

Please contact if you still encounter the same issue.