If your course is taking a long time to load or won't open, it's often caused by your browser's cached data.
Try the following steps:
Google provides instructions for clearing your cache here:
https://support.google.com/accounts/answer/32050?co=GENIE.Platform%3DDesktop&hl=en
If clearing your cache doesn't resolve the issue, try opening the course in an incognito or private browsing window. This temporarily disables cached browsing data and can help identify whether the issue is browser-related.
If the course still won't load after clearing your cache and trying an incognito or private browsing window, log a ticket via the ChatBot and include the course name, the browser you're using, and any error messages or screenshots.