Thanks for reaching out here in the Community, @susan.siegel. Let me help you with your query.
When a user encounters problems with QBO that appear to be browser-related, we recommend that they clean their cache. Temporary internet files increase loading performance, but too much can build up and cause operations to slow down.
Since the issue persists after you cleared your browser's cache, consider using an incognito window, or another browser.
Additionally, may I ask what specific link or transactions you are trying to access? And which part of the QBO page you encountered the issue.
If you have further questions about this. Let us know by leaving a comment down below. Your concern is always our top priority. Keep safe!