Good day, Emmanuel. Let me assist you in locating your missing invoices and quotations in QuickBooks.
Before we proceed, can you tell us exactly which section in QuickBooks you're unable to see your invoices and quotations? This way, I can provide the appropriate troubleshooting steps to fix the problem.
In the meantime, let's open your account in a private window. Doing this will help us check if the issue is related to excessive cache build-up in your current browser. You can press the following shortcut keys to access this mode: