Try these steps:
Make sure you're using the Zoom Desktop application (download here if you don't have it).
Make sure you're signed in to your CGA Zoom account on the desktop application
Visit https://zoom.us/signin (Links to an external site.) and log out, then log back in with your CGA Google account (with your student email address)
Access your Zoom link from the course page on CGA Home
CGA Home 'Daily Schedule' or 'Subjects'
Video Instruction is here (redirect to Canvas Induction Course).