If you receive an error message when trying to login to Canvas through MyOCC, you might still be able to login to Canvas another way.
You can still access Canvas by choosing "Login using your email and Canvas password." See picture attachment.
If you have not have set-up your email login to Canvas yet, select "password help" (see picture 2) from the blue login page. Set a new password (suggest you use the same one for username login for simplicity.) Check your email for password reset.