It's a strange occurrence but most of us tend to face this after heavily advertising. They somewhat "died" after joining; no clicks whatsoever.
Incentives don't always work if they only want quick and easy profit.
Most of the people join freebitco to earn free BTC. And the main marketing tool is ‘earn upto $200 from faucets every hour’. Many newbie crypto user join through the affiliate links with a hope of winning big amounts from faucets. Eventually they leave the site when they loss their interest by getting the lower tier prizes. Among my 38 referrals only one user is active now. I had only 4-5 referrals who used to play the multiply BTC game. But none of them active now.
EDIT: Is the site facing some DDOS attack lately? Haven't been able to load throughout the day.
No problem here. Maybe your ISP is blocking the access, otherwise the problem is from your browser.