https://bitmax.io/api/v1/barhist?symbol=LTO-BTC&interval=60&from=1550186549000&to=1550186649000 returns no data Higher timeframes for the same timeframe work fine https://bitmax.io/api/v1/barhist?symbol=LTO-BTC&interval=360&from=1550186549000&to=1550186649000