Spot testnet not execute order

Hi everyone
I make a BUY order using API SPOT TESTNET it returns me this JSON:


executedQty: 0 ?
status":"EXPIRED” ?
“fills”: ?

some times the order is successful, other times (most) it returns this JSON to me. With this response JSON the BUY order is rejected.

Any suggestions
thanks bye

Try a different symbol like BNBUSDT; This one doesn’t have enough liquidity