I didn't commit a crime, it's just for privacy, so is there any way to recover my btc 
Those guys don't care if you just did it for privacy. They are feeling bad that you didn't want them to snoop onto your transactions. Consider the BTC gone. There's nothing much you can do at this moment to try to recover the coins Actually this is my first time seeing someone said he lost coins due to the seizure of ChipMixer. I was really telling my friend days ago the advantage of mixers over exchanges even if they don't serve the same purpose.
I was telling him assuming it was an exchange that was siezed, people by now would have been crying of fund lost.
Maybe the victims of the seizure won't speak up because they fear being targeted by the law enforcement. I was telling him assuming it was an exchange that was siezed, people by now would have been crying of fund lost.