Let's get this sorted out so you can access your QuickBooks Online account, tami.hardie.
You can start by clearing the browser's cache and cookies. Histories can block web pages from loading and also gets outdated which can cause issues.
I'm here to help fix this. Follow the steps to clear cache for your browser:
After clearing the history, make sure to restart your browser. Also, use a supported, up-to-date browser to have the best and most secure experience with QuickBooks.
I'm adding these articles for future guide:
Keep me posted on how everything turns out by commenting below. I'll be around whenever you have follow-up questions about accessing your QuickBooks account.