They seem to have shut down.
Much to our regret, after this step Liqui is no longer able to provide liquidity for the Users left. We also do not see any economic point in providing you with our services.
Source:
https://liqui.io/They say there is still 30 days from the day they sent that message to withdraw all funds so if that is still possible hurry up and do it.
After 30 days we cannot guarantee that we will be maintaining our website. In this case, all withdrawals will be processed through our support
https://liqui.freshdesk.com/support/homeIf you can't withdraw from the site try to get in touch with their support. I posted the link above.