Pulling up your past invoice is essential for monitoring your previous sales, Myphoto. I assure you that I will provide resolution this issue by following specific troubleshooting steps in QuickBooks Online.
You can use the date filtering feature that allows you to search for past invoices by specifying a particular period, making it easy to find and review previous sales transaction in QBO. See the screenshot below for additional reference:

Since you mentioned that your QBO account freezes, you can begin the troubleshooting steps to establish whether this situation is caused by an error or a bug within the application.
First, you can use a private window to sign in to your QuickBooks account; refer to these shortcuts to private browsers below:
- Google Chrome: press Ctrl + Shift + N
- Microsoft Edge: press Ctrl + Shift + N
- Firefox: press: Shift + CTRL + P
If you can view past invoices in the incognito window, I recommend clearing the cache from your regular browser to reduce issues that appear when using QBO. After that, search your invoice again under the Sales tab and filter the exact date.
I'm including a page dedicated to recording invoice payments within QuickBooks Online (QBO): Record invoice payments in QuickBooks Online.
In addition, leverage reports to obtain insights regarding your buying and selling activities in this article: Use reports to see your sales and inventory status in QuickBooks Online.
I'm here to offer continuous support and guidance about invoice management in QuickBooks Online (QBO). If you have inquiries or need further assistance, please do not hesitate to comment by clicking the Reply button below, and I will promptly respond to address your concerns.