Have you tried contacting their representative profile on this forum linked above, or posted on their announcement thread? Based on their trust feedback page, it seems contacting them can help your case. Some users have deposit/withdrawal problems and it was solved according to them. Depending on what is actually going on with your funds I wouldn't be too hopeful though, but it seems worth doing compared to hiring a lawyer directly which may not help you at all due to different jurisdictions, etc.

They are also quite active here, their last seen is just yesterday. So, there is definitely a chance that they will read and respond to your message.