Welcome to the Developer Forum. Based on the error, it looks like the root cause of the issue is Invalid parameters are set for the Join function. Can you share a screenshot of what is set in the join function of the SDK?
Thank you for the screenshot @web_zoom! Have you tried to upgrade to the latest SDK 2.4.0? If not, please try testing with the latest version of the Web SDK. You can test using our Sample Web App to confirm if you see the same issue. There have been multiple bug fixes since your version of the SDK.