All the funds were gone in one night

Mark asked me to deposit money and kept calling me. When I found that there was a problem and wanted to withdraw money, I was not allowed to withdraw money because the margin was lower than the safe value. There is no stop loss in investment, and the losses are increasing. Mark says this is not a real loss, I have to believe him. This is a scam. In just one night, more than 5,000 US dollars were gone. I do not recommend this platform at all.