------Row JSON Data------
{     "URL": "http://197.232.172.26:8084/api/sign?invoice+1",      "Authorization": "Basic ZxZoaZMUQbUJDljA7kTExQ==2023",      "invoice_date": "1-Jan-24",      "invoice_number": "1",      "invoice_pin": "P0000000000L",      "customer_pin": "P123456789K",      "customer_exid": "1234",      "grand_total": 6060.00,      "net_subtotal": 5500.00,      "tax_total": 560.00,      "net_discount_total": "0",      "sel_currency": "KSH",      "items_list": [         {             "Product": "Item A",              "Qty": "10",              "Rate": "116",              "Amount": "1160"         },          {             "Product": "Item B",              "Qty": "5",              "Rate": "580",              "Amount": "2900"         },          {             "Product": "Ice Exempt",              "Qty": "10",              "Rate": "200",              "Amount": "2000"         }     ] }
------Error Data------
The remote server returned an error: (500) Internal Server Error.