If you are using Windows follow the troubleshooting steps in the link: https://verificient.freshdesk.com/a/solutions/articles/1000279242
For MAC OS, follow the steps in the link: https://verificient.freshdesk.com/a/solutions/articles/1000279258
If the above solutions do not work, please try using the Manycam App, link to use Manycam is given below.:
https://verificient.freshdesk.com/a/solutions/articles/1000279259