The “Expected earnings /day” value is just an estimate. Wait like 4-6 hours and check it again. It should go up.
It’s also possible the pool payout has been dropped in the last 24 hours. My estimated earnings dropped on my 330Mh/s farm today for some reason. I went from 0.12 ETH per week estimated to .07 ETH per week with no hashrate change.
If it doesn’t go back to normal, I might consider moving my farm to a different pool!