On 2019-05-09 14:50:32 GMT, We had a serious outage with pool that interrupted mining for 48hours.  At exactly same time, the secondary pool in Norway (operated by our community member) was down due to power failure. This means miners who mined blocks before the outage wait for an extra 48 hours.
We never imagined that both pools will have outage at the same time, but it happened! As a result, no blocks were generated, no mining rewards matured and no transactions went through during the outage!