ERROR: Server didn't return 200 status code!

https://www.signatureacquisitions.com/api/v0.1/getRecordsAPIArray
(
    [argsJSON] => {
    "tableName": "contact_details",
    "loadUploads": true,
    "allowSearch": false,
    "_REQUEST": {
        "loc": "8\u00a7=",
        "sect": "6"
    }
}
)
Array
(
    [url] => https://www.signatureacquisitions.com/api/v0.1/getRecordsAPI
    [content_type] => 
    [http_code] => 100
    [header_size] => 25
    [request_size] => 308
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 6.002081
    [namelookup_time] => 0.004147
    [connect_time] => 0.005116
    [pretransfer_time] => 0.011062
    [size_upload] => 304
    [size_download] => 0
    [speed_download] => 0
    [speed_upload] => 50
    [download_content_length] => -1
    [upload_content_length] => 304
    [starttransfer_time] => 0.012138
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => 34.241.49.163
    [certinfo] => Array
        (
        )

    [primary_port] => 443
    [local_ip] => 172.31.17.116
    [local_port] => 51560
)