http code 503. binance error code -1001. Internal error

I luanch an new order request for future USD-m BTCUSDT and get error below. What does this error mean?

"-1001 Error. Internal error; unable to process your request. Please try again "

“Http status code: 503”

Does this error happen in exchange side?

Does this mean the binance exchange server is so busy that it can’t deal with my request?

My Request Parameters are as below:


Best Regards

503 stands for Service Unavailable Error. It’s server side error, so when it happens, please follow the suggested in the error message and try again.