Zappool had an outage, fixed, and apologies! The reason was my human error (not technical, late hosting payment 🥺). Fixed, restarted, hashrate came back, all seems fine. There was no payout yesterday, as the outage started just before payout time. If a miner has a second backup pool configured, and the primary becomes unavailable, it will auto-switch to the secondary, and eventually it will switch back to the primary if available again. I need to improve monitoring.