Allow me to help you locate your QuickBooks Online account, Mj, so you can get back to managing your business seamlessly.
Before we proceed, please note that QuickBooks Online and QuickBooks Desktop are two separate products.
QuickBooks Online is a cloud-based service that you access through a web browser, while QuickBooks Desktop is installed on your computer, and the data file is stored locally.
Since you mentioned that you can't connect with your QuickBooks Online, please ensure that you're using the correct URL: https://qbo.intuit.com/. Also, verify that you are entering the correct login credentials in your web browser.
However, if you are referring to the QuickBooks Online Desktop App, I recommend searching for it in your Windows search menu to verify if it is installed.
If it doesn't appear, it is possible that it was accidentally uninstalled. In that case, I suggest downloading the app again via the official QuickBooks Online platform.
Please don't hesitate to leave a comment below if you still require further assistance.