This is a common issue, first please verify that you're using the correct login.
Canvas dashboard: https://ccconlineed.instructure.com/
Catalog dashboard: https://catalog.onlinenetworkofeducators.org/
If that doesn’t help, you may need to clear your cache.
Canvas Basics Guide - Clear Browser Cache for Mac
Canvas Basics Guide - Clear Browser Cache for PC
If you're still unable to log in, from the Canvas login page select, 'Forgot Password' to receive reset instructions. You should receive an email within a few minutes with instructions (remember to check your spam folder).
Canvas Basics Guide - How do I reset my Canvas password?
Canvas Basics Guide - How do I contact Canvas Support?
Canvas Catalog Dashboard Guide
Great Canvas Resources
**Note: A course will not appear on your dashboard until it has been published by the facilitator. Canvas Catalog Dashboard Guide Great Canvas Resources