promact

Hi, I am facing the same issue which is mentioned above.
This is what I am getting in debug mode.

array (
  'settings' => 
  array (
    'props' => 
    array (
      'endpoint' => 'https://secure.shippingapis.com/ShippingAPI.dll',
      'defaultUserId' => '904SKYWO3126',
      'domestic' => 
      array (
        0 => 'US',
        1 => 'PR',
        2 => 'VI',
        3 => 'MH',
        4 => 'FM',
      ),
      'services' => 
      array (
        'EXPRESS_MAIL' => 
        array (
          'name' => 'Priority Mail Express™',
          'services' => 
          array (
            3 => 'Priority Mail Express™',
            2 => 'Priority Mail Express™, Hold for Pickup',
            23 => 'Priority Mail Express™, Sunday/Holiday',
          ),
        ),
        'PRIORITY_MAIL' => 
        array (
          'name' => 'Priority Mail®',
          'services' => 
          array (
            1 => 'Priority Mail®',
            33 => 'Priority Mail®, Hold For Pickup',
            18 => 'Priority Mail® Keys and IDs',
            47 => 'Priority Mail® Regional Rate Box A',
            48 => 'Priority Mail® Regional Rate Box A, Hold For Pickup',
            49 => 'Priority Mail® Regional Rate Box B',
            50 => 'Priority Mail® Regional Rate Box B, Hold For Pickup',
          ),
        ),
        'FIRST_CLASS' => 
        array (
          'name' => 'First-Class Mail®',
          'services' => 
          array (
            '0A' => 'First-Class Mail® Postcards',
            '0B' => 'First-Class Mail® Letter',
            '0C' => 'First-Class Mail® Large Envelope',
            '0D' => 'First-Class Mail® Parcel',
            12 => 'First-Class™ Postcard Stamped',
            15 => 'First-Class™ Large Postcards',
            19 => 'First-Class™ Keys and IDs',
            61 => 'First-Class™ Package Service',
            53 => 'First-Class™ Package Service, Hold For Pickup',
            78 => 'First-Class Mail® Metered Letter',
          ),
        ),
        'STANDARD_POST' => 
        array (
          'name' => 'USPS Retail Ground™',
          'services' => 
          array (
            4 => 'USPS Retail Ground™',
          ),
        ),
        'MEDIA_MAIL' => 
        array (
          'name' => 'Media Mail',
          'services' => 
          array (
            6 => 'Media Mail',
          ),
        ),
        'LIBRARY_MAIL' => 
        array (
          'name' => 'Library Mail',
          'services' => 
          array (
            7 => 'Library Mail',
          ),
        ),
      ),
      'subservicesEnabled' => 
      array (
        3 => 'yes',
        2 => 'yes',
        23 => 'yes',
        1 => 'yes',
        33 => 'yes',
        18 => 'yes',
        47 => 'yes',
        48 => 'yes',
        49 => 'yes',
        50 => 'yes',
        '0A' => 'yes',
        '0B' => 'yes',
        '0C' => 'yes',
        '0D' => 'yes',
        12 => 'yes',
        15 => 'yes',
        19 => 'yes',
        61 => 'yes',
        53 => 'yes',
        78 => 'yes',
        4 => 'yes',
        6 => 'yes',
        7 => 'yes',
      ),
      'supports' => 
      array (
        0 => 'settings',
      ),
      'id' => 'usps_simple',
      'method_title' => 'USPS Simple',
      'method_description' => 'The <strong>USPS Simple</strong> plugin calculates rates for domestic shipping dynamically using USPS API during checkout.',
      'enabled' => 'yes',
      'title' => 'USPS Simple',
      'rates' => 
      array (
      ),
      'tax_status' => 'taxable',
      'fee' => NULL,
      'minimum_fee' => NULL,
      'instance_id' => 0,
      'instance_form_fields' => 
      array (
      ),
      'instance_settings' => 
      array (
      ),
      'availability' => NULL,
      'countries' => 
      array (
      ),
      'plugin_id' => 'woocommerce_',
      'errors' => 
      array (
      ),
      'data' => 
      array (
      ),
      'serviceDescription' => 'This controls the title which the customer sees during checkout.',
      'sender' => '07103-3726',
      'userId' => '904SKYWO3126',
      'commercialRate' => 'yes',
      'groupByWeight' => 'yes',
      't_express_mail' => 'Priority Mail Express™ (USPS Simple)',
      't_priority_mail' => 'Priority Mail® (USPS Simple)',
      't_first_class' => 'First-Class Mail® (USPS Simple)',
      't_standard_post' => 'USPS Retail Ground™ (USPS Simple)',
      't_media_mail' => 'Media Mail (USPS Simple)',
      't_library_mail' => 'Library Mail (USPS Simple)',
    ),
    'settings' => 
    array (
      'enabled' => 'yes',
      'sender' => '07103-3726',
      'user_id' => '',
      'commercial_rate' => 'yes',
      'group_by_weight' => 'yes',
      'express_mail' => '',
      't_express_mail' => '',
      'express_mail_3' => 'yes',
      'express_mail_2' => 'yes',
      'express_mail_23' => 'yes',
      'priority_mail' => '',
      't_priority_mail' => '',
      'priority_mail_1' => 'yes',
      'priority_mail_33' => 'yes',
      'priority_mail_18' => 'yes',
      'priority_mail_47' => 'yes',
      'priority_mail_48' => 'yes',
      'priority_mail_49' => 'yes',
      'priority_mail_50' => 'yes',
      'first_class' => '',
      't_first_class' => '',
      'first_class_0A' => 'yes',
      'first_class_0B' => 'yes',
      'first_class_0C' => 'yes',
      'first_class_0D' => 'yes',
      'first_class_12' => 'yes',
      'first_class_15' => 'yes',
      'first_class_19' => 'yes',
      'first_class_61' => 'yes',
      'first_class_53' => 'yes',
      'first_class_78' => 'yes',
      'standard_post' => '',
      't_standard_post' => '',
      'standard_post_4' => 'yes',
      'media_mail' => '',
      't_media_mail' => '',
      'media_mail_6' => 'yes',
      'library_mail' => '',
      't_library_mail' => '',
      'library_mail_7' => 'yes',
    ),
  ),
  'package' => 
  array (
    'contents' => 
    array (
      '2178946f1787a676f83fdd283deafcde' => 
      array (
        'key' => '2178946f1787a676f83fdd283deafcde',
        'product_id' => 8950,
        'variation_id' => 9221,
        'variation' => 
        array (
          'attribute_pa_color' => 'black',
        ),
        'quantity' => 1,
        'data_hash' => '8ebe40e554c18ebfc44954a0df960f82',
        'line_tax_data' => 
        array (
          'subtotal' => 
          array (
          ),
          'total' => 
          array (
          ),
        ),
        'line_subtotal' => 36.0,
        'line_subtotal_tax' => 0,
        'line_total' => 36.0,
        'line_tax' => 0,
        'product' => 
        array (
          'name' => 'Covered - Black',
          'slug' => 'covered-black',
          'price' => '36',
          'regular_price' => '36',
          'sale_price' => '',
          'weight' => '2.5 kg',
          'weight_lbs' => 5.51155,
          'dimensions' => ' x  x  cm',
          'dimensions_in' => '0 x 0 x 0',
        ),
      ),
    ),
    'contents_cost' => 36.0,
    'applied_coupons' => 
    array (
    ),
    'user' => 
    array (
      'ID' => 0,
    ),
    'destination' => 
    array (
      'country' => 'US',
      'state' => 'NJ',
      'postcode' => '07305',
      'city' => 'New Jersey',
      'address' => '72 Thorne st Jersey City',
      'address_1' => '72 Thorne st Jersey City',
      'address_2' => '',
    ),
    'cart_subtotal' => '36.00',
    'rates' => 
    array (
    ),
  ),
  'requests' => 
  array (
    'ONLINE' => 'API=RateV4&XML=
<RateV4Request USERID="904SKYWO3126">
    <Revision>2</Revision>
    <Package ID="group_by_weight_0:1:0:0:0:0">
        <Service>ONLINE</Service>
        <ZipOrigination>07103-3726</ZipOrigination>
        <ZipDestination>07305</ZipDestination>
        <Pounds>5</Pounds>
        <Ounces>8.18</Ounces>
        <Container/>
        <Size>REGULAR</Size>
        <Width>0</Width>
        <Length>0</Length>
        <Height>0</Height>
        <Girth>0</Girth>
        <Machinable>true</Machinable>
        <ShipDate>28-Jan-2021</ShipDate>
    </Package>
</RateV4Request>
',
    'STANDARD POST' => 'API=RateV4&XML=
<RateV4Request USERID="904SKYWO3126">
    <Revision>2</Revision>
    <Package ID="group_by_weight_0:1:0:0:0:0">
        <Service>STANDARD POST</Service>
        <ZipOrigination>07103-3726</ZipOrigination>
        <ZipDestination>07305</ZipDestination>
        <Pounds>5</Pounds>
        <Ounces>8.18</Ounces>
        <Container/>
        <Size>REGULAR</Size>
        <Width>0</Width>
        <Length>0</Length>
        <Height>0</Height>
        <Girth>0</Girth>
        <GroundOnly>true</GroundOnly>
        <Machinable>true</Machinable>
        <ShipDate>28-Jan-2021</ShipDate>
    </Package>
</RateV4Request>
',
  ),
  'responses' => 
  array (
    'ONLINE' => 
    array (
      'headers' => 
      Requests_Utility_CaseInsensitiveDictionary::__set_state(array(
         'data' => 
        array (
          'x-backside-transport' => 'OK OK',
          'cache-control' => 'private',
          'content-type' => 'text/xml',
          'server' => 'Microsoft-IIS/10.0',
          'x-aspnet-version' => '4.0.30319',
          'x-powered-by' => 'ASP.NET',
          'date' => 'Wed, 27 Jan 2021 08:15:34 GMT',
          'x-global-transaction-id' => 'e41d61746011212c0bd9317f',
          'access-control-allow-origin' => '*',
          'ntcoent-length' => '317',
          'x-frame-options' => 'SAMEORIGIN',
          'strict-transport-security' => 'max-age=31536000; includeSubDomains',
          'content-encoding' => 'gzip',
          'content-length' => '250',
        ),
      )),
      'body' => '<?xml version="1.0" encoding="UTF-8"?>
<RateV4Response>
    <Package ID="group_by_weight_0:1:0:0:0:0">
        <Error>
            <Number>-2147219498</Number>
            <Source>RateEngineV4;RateV4.ProcessRequest</Source>
            <Description>Please enter a valid ZIP Code for the sender.  </Description>
            <HelpFile/>
            <HelpContext/>
        </Error>
    </Package>
</RateV4Response>
',
      'response' => 
      array (
        'code' => 200,
        'message' => 'OK',
      ),
      'cookies' => 
      array (
      ),
      'filename' => NULL,
    ),
    'STANDARD POST' => 
    array (
      'headers' => 
      Requests_Utility_CaseInsensitiveDictionary::__set_state(array(
         'data' => 
        array (
          'x-backside-transport' => 'OK OK',
          'cache-control' => 'private',
          'content-type' => 'text/xml',
          'server' => 'Microsoft-IIS/10.0',
          'x-aspnet-version' => '4.0.30319',
          'x-powered-by' => 'ASP.NET',
          'date' => 'Wed, 27 Jan 2021 08:15:35 GMT',
          'x-global-transaction-id' => 'ce7aa4526011212d4f1fb2fd',
          'access-control-allow-origin' => '*',
          'ntcoent-length' => '317',
          'x-frame-options' => 'SAMEORIGIN',
          'strict-transport-security' => 'max-age=31536000; includeSubDomains',
          'content-encoding' => 'gzip',
          'content-length' => '250',
        ),
      )),
      'body' => '<?xml version="1.0" encoding="UTF-8"?>
<RateV4Response>
    <Package ID="group_by_weight_0:1:0:0:0:0">
        <Error>
            <Number>-2147219498</Number>
            <Source>RateEngineV4;RateV4.ProcessRequest</Source>
            <Description>Please enter a valid ZIP Code for the sender.  </Description>
            <HelpFile/>
            <HelpContext/>
        </Error>
    </Package>
</RateV4Response>
',
      'response' => 
      array (
        'code' => 200,
        'message' => 'OK',
      ),
      'cookies' => 
      array (
      ),
      'filename' => NULL,
    ),
  ),
  'unitedResponse' => '<?xml version="1.0" encoding="UTF-8"?>
<RateV4Response>
    <Package ID="group_by_weight_0:1:0:0:0:0">
        <Error>
            <Number>-2147219498</Number>
            <Source>RateEngineV4;RateV4.ProcessRequest</Source>
            <Description>Please enter a valid ZIP Code for the sender.  </Description>
            <HelpFile/>
            <HelpContext/>
        </Error>
    </Package>
</RateV4Response>
',
  'shownRates' => 
  array (
  ),
  'eliminatedRates' => 
  array (
  ),
)