URGENT: Critical Evertec payment device connection issue!

Hi there,

Need urgent assistance: Unable to connect to Evertec payment device via NetSuite due to 'unknown host' error. Successful connections via Postman and browser, but facing difficulties with NetSuite. Error details provided below. Immediate assistance required to resolve this problem. Kindly help in resolving this issue.

{"type":"error.SuiteScriptError","name":"SSS_UNKNOWN_HOST","message":"The host you requested null is unknown or cannot be found.","id":"","stack":["runRequest(N/httpUtil)","suitelet(/SuiteBundles/Bundle 331064/NSPOS Evertec Sample.js:28)"],"cause":{"type":"internal error","code":"SSS_UNKNOWN_HOST","details":"The host you requested null is unknown or cannot be found.","userEvent":null,"stackTrace":["runRequest(N/httpUtil)","suitelet(/SuiteBundles/Bundle 331064/NSPOS Evertec Sample.js:28)"],"notifyOff":false},"notifyOff":false,"userFacing":false}