I see no issue there. Just refresh the page.
The button is there . total locked fun = 7,037,195,418
Just recently, there were locked ~6,9 billion fun tokens, and now there are already more than 7 billion tokens. In other words, it turns out that there are still users who trust freebitcoin and continue to lock their fun tokens. But it's unclear why, given that there is no long-term benefit from this locking of tokens on the freebitcoin site.
I earned the FUN tokens for free, so I locked them up. So it's no loss other than time if this site goes down. Come to think about it, running a website like FBC requires a high level of technical expertise and ethics, especially in the absence of regulations in the opaque world of crypto gambling. However it's also potentially very profitable. So running such a business into the ground would suggest incompetence - possibly shown by the many technical issues reported by users. On the other hand, a gambling site could be targeted by regulators somewhere eventually, so I'd be more careful in dealing with customers - but I don't run the show. These people could bring unwanted attention to themselves with these antics.