One of our payment providers, Vantiv, had a full outage on Saturday morning from 6:48AM until 7:52AM Eastern. This impacted any registrations that were for races that used that back end payment processing. People trying to register during this time saw an error message and hopefully tried again later in the day.
We are working with Vantiv to find out if there are ways we can make sure this does not happen again. The last time was several years ago. We do have a project on our long term development plan to have flexible payment processing that may allow us to dynamically switch from one payment processor to another.
This is the first outage RunSignup has had since a planned outage on Oct. 27, 2015.