They have no even 0.1 XMR in their fvckin hot wallet. DEF SCAM. DO NOT PLAY IN THERE.
Most likely their XMR hot wallet is depleted, you need to wait until they refill it. However in less than 24 hours they have the XMR fork, so most likely they will need to update their daemon before they resume any XMR deposits and withdraws.
Is someone else in the same situation ?

Does anyone have any idea a way to contact
the admin/support/staff ?
I WOULD REWARD in cryptos anyone who finds a way.
If you read this thread anytime in 2018 you would of discovered that this site isn't #1 when it comes to support or service. However they will eventually refill their hot wallets and be able to process withdraws but you need to be patient.
They might or might not of had some support staff because back in May someone was active in this thread but who knows. Maybe they couldn't afford to pay this person anymore since BTC started crashing.