2022-01-07 7:01:02[1641538862.3763] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 24.7367
    [size] => -0
    [tif] => gtc
)
 Array
(
    [label] => INVALID_ARGUMENT
    [detail] => invalid size
)

2022-01-07 10:01:03[1641549663.6734] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 25.6466
    [size] => -0
    [tif] => gtc
)
 Array
(
    [label] => INVALID_ARGUMENT
    [detail] => invalid size
)

2022-01-07 16:01:04[1641571264.0461] - new sell order: Array
(
    [contract] => DOT_USDT
    [price] => 25.1088
    [size] => -0
    [tif] => gtc
)
 Array
(
    [label] => INVALID_ARGUMENT
    [detail] => invalid size
)