Same here, I've tried using VPN and it works but my balance is empty even though I joined the giveaway I got 0.5 mbtc free credit
This problem makes me hesitate to make a new deposit so I suggest you don't make a deposit before the operator confirms this problem
P.S. I used VPN because without VPN site dont loaded
Just trying using a VPN then my promblem's on my IP (Indonesia). Something wrong with a few country to able access btcarena?

In VPN I used the server of the Netherlands. The site loads without delay