Exact same thing happened to me on Feb 7th. After almost 2 weeks of waiting for the FUN deposit, I received the withdraw email. When clicking the link to verify the transaction on etherscan, I get the same exact error as you "ERC-20 Token Transfer Error (Unable to locate corresponding Transfer Event Logs), Check with Sender. "

Just like that, 550k FUN gone.They were withdrawn from the site too/they don't appear in the Premium section anymore. I noticed at the time it was because there were not enough FUN in their wallet https://etherscan.io/address/0x12d4017f232ebb4327e8e0082ed4337084bf2e84#tokentxns

I wrote to support but of course there is no answer. ABSOLUTE SCAM.

So they processed the withdraw, but because there wasn't enough FUN in the wallet it failed, but they still withdrew it from my FBC account and sent me the email. I have some more FUN unlocking soon and will be keeping an eye on that wallet and make sure that I only withdraw when there is enough FUN there.

I am already looking into legal actions I can take, but I am afraid there is not much that can be done.