It sounds like you had bad luck, same as i had yesterday for a few hours.
I have an average hashrate of 11 – 12k/s. I get like 70 – 90 coins a day, if i let it run the whole day (i work at home so i let it run all day).
In the end, it’s still RNG. If the luck is not on your side, it’s possible to not get a coin in a whole day (which never happend to me).
Just keep mining and it may change. As for me, i got 30 JSECoins since the last reset of daily earnings and it’s only 9:27 am.
Good luck with the mining!