It isn't the kind of experience that we want you to come across, AliceMaria1.

Let's check your internet security requirements of the Internet Explorer settings. Let me guide you how:

1. Go to Tools ⚙.
2. Select Internet options.
3. Select Advanced, and scroll down to the Security section.
4. See if you have TLS 1.2 checked. If not, select the box to turn it on.
5. Select OK.
6. Exit all open applications on your computer.
7. Restart your computer, then try to download your transactions.

If the same issue persists, let's try downloading the transactions in a test company file. Here's how:

1. From the File menu, select New Company.
2. Select Express Start or Start Setup.
3. Set up Bank Feeds for the affected account.
4. Try try to download the items.

If the same thing happen, let's verify the compatibility of your bank with QuickBooks. Here's a reference as your guide: Step 3: Check if the file from your bank is compatible with QuickBooks.

Let me know how these steps work on your end. I'll be happy to help you out!