Click on the ClickShare Logo that appeared on your desktop and the ClickShare screen will open.
Click ClickShare_for_MacOSX in the center and the Clickshare App will open.
Click on the physical Button or click the white circle in the ClickShare App.

Since macOS Big Sur, Apple changes its Privacy Policy. This means that for every action you perform for the first time, you will need to grant permissions in your OS. Click OK in the popup from the ClickShare App.
Click the lock icon in the bottom left corner of the Security & Privacy window. After providing your credentials (you will need an account with admin rights), you will see the checkbox of ClickShare App unchecked. Please check this checkbox.
Click Quit & Reopen.
