Due to an "Internal Server Error" with Polar's Flow service RunGap has been unable to import new workouts for the past few days.
Polar has acknowledged the problem and says that they are working on fixing it. You can verify the problem by logging on to their website and try to export one of your sessions in any of the supported formats. You will then be directed to a page displaying an "Internal Server Error" and a suggestion to contact Polar Customer Care. Please do so in order to help escalate the issue and get it fixed in a timely manner.