They seem to be off-line now and I don't think it's for a maintenance and they'll be back soon as they say...
I think they've done an exit scam because they've only sent few BTC transactions during all the last month, February, while they were about to close and many people wanted to withdraw their funds.
https://archive.is/DZraLhttps://coinpot.co/Agree but not unexpected for me.
Coinpot started to smell as SCAM 1-2 years ago: 1º new tokens + 2º (NOT)provably fair multiplier game + 3º (unsustainable)VIP rewards = next year exit SCAM.
and of course very bad conversion rates, etc.
Most of people with small withdrawals saying "oh yes, coinpot.co pays you well"... but when you try to recover higher quantities, I think you'll never see it back in your wallet again.