it happened to me what happend to others users, I can not find my wallet anymore in their miner look up, this happened after their website was not accessible for a couple of minutes, cloudflare message will show.
i believe I read the owner is scaling and is moving the redis (database backend) data to another server...
then I will suggest to others from
my experience with them to use another mining pool until they are fixing their issues.
do not use suprnova, according to
https://www.miningpoollists.com/bitcoinz/ more than 51% of miners are there.