alpaca.lastQuote(symbol) bid and ask = 0

Im using NodeJS alpaca SDK which has been published for 2.0 on npmjs finally. Still when using lastQuote(symbol) the data received many times is like this

“status”: “success”,
“symbol”: “BAC”,
“last”: {
“askprice”: 0,
“asksize”: 0,
“askexchange”: 15,
“bidprice”: 0,
“bidsize”: 0,
“bidexchange”: 15,
“timestamp”: 1617224043780150300

anyone knows why Im still getting random empty data? I have pro subscription on all accounts.