If you receive an error code or warning while trying to access Zoom inside the Canvas classroom, it is likely because you need update the default email in Canvas to your faculty email associated with your Zoom account. This can be problematic for associate faculty who work at multiple colleges. The error code will look like this below.
After you update your default email address in Canvas, close all browser tabs and clear cache and cookies. For instructions on how to update your default email address in Canvas, please view How do I change my default email address in my user account as an instructor?