2021-11-26 9:01:02[1637917262.5279] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 35.44
    [size] => -0
    [tif] => gtc
)
 Array
(
    [label] => INVALID_ARGUMENT
    [detail] => invalid size
)

2021-11-26 13:01:02[1637931662.7712] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 35.2543
    [size] => -0
    [tif] => gtc
)
 Array
(
    [label] => INVALID_ARGUMENT
    [detail] => invalid size
)

2021-11-26 22:01:02[1637964062.9336] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 34.8573
    [size] => -0
    [tif] => gtc
)
 Array
(
    [label] => INVALID_ARGUMENT
    [detail] => invalid size
)