I'm trying to reconnect our bank account, however the links don't work and take me to a white blank screen.

Hi katyelove84,

We'll want to ensure that you'll be able to reconnect your bank account. Let's access your QuickBooks Online (QBO) using a private window to rule out any browser-related issue.

Here are the keyboard shortcuts:
 
Google Chrome: Ctrl + Shift + N
Internet Explorer: Ctrl + Shift + P
Mozilla Firefox: Ctrl + Shift + P
Safari: Command + Option + P

If it works, clear your browser's cache for the system to start fresh.

You'll also want to switch to another browser.

Once you've connected your bank, you can match and categorize your bank transaction in QuickBooks Online: Download, Match, and Categorize Your Bank Transactions in QuickBooks Online.

You can always get back into this post if you have more questions. I'll be right here to help.