You can exit the Sales page by clicking the Exit beta button. It seems you don't have the option to exit the page. I'm here to guide you to fix the concern.
You can run some troubleshooting steps to isolate the issue. To start with, log into your QuickBooks account on an incognito window. This step will disable the extensions and stops the cache from saving your search history.
Google Chrome: Ctrl + Shift + N
Safari: Command + Shift + N
Microsoft Edge and Mozilla Firefox: Ctrl + Shift + P
If you're able to exit the Sales page, you can continue working on the file using a regular browser and ensure to clear your browser's cache. If not, please use a different browser to see if this only happens to the one you are using.