Just received the following:

Dear User,
We will be permanently closing down all OneHash services (including Cyberdice: https://cyberdice.net/) starting from 11:59 pm CEST on 30th June 2022. For this reason, if you have any funds left at your OneHash wallet, we urge you to withdraw them.
If you fail to withdraw your balance before that date, your funds will be lost.
Should you have any questions, please reach out to contact@onehash.com