Invalid SDKKey for Meeting SDK


I’m trying to test the client view for meeting-sdk. It was working til last week with the same SDK key but now it throws Invalid sdkkey error in the dev console.
I cloned the repo from here: GitHub - zoom/meetingsdk-sample-javascript: Use the Zoom Meeting SDK in a JavaScript App, tried with both 2.4.0 and 2.4.5 version of the SDK but the result is same.

Config for joining the meeting

var signatureEndpoint = 'http://localhost:4000';
var sdkKey = 'xyz;
var meetingNumber = '123123';
var role = 0;
var leaveUrl = '';
var userName = 'Host';
var userEmail = '';
var passWord = '123456';
var registrantToken = 'xxxxxx';

Please let me know if I’m missing anything here.

Sharing a screenshot for your reference:

Thank you.

Please ignore, I was using the wrong server to generate the signature. Demo app is working fine When used to generate the signature.