any ideas what this is about?

On Thursday, May 7, 2015, Gratipay Support <support@gratipay.com> wrote:
Gratipay
We have an unfortunate announcement to make: after 152 weeks of continuous operation, we are for the first time today skipping Gratipay's weekly payment cycle. We are deeply sorry. :-(
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Sent by Gratipay, LLC | 716 Park Road, Ambridge, PA, 15003, USA