What is going on with trustco bank

Try opening your QBO account on any private/incognito browser.

I appreciate you for raising your concern in the Community, @divinefinishing. Let's work together to resolve the bank error you encountered in QuickBooks Online (QBO) so you can connect your credit card. 

Before that, could you please specify the error message you've encountered? This way, we can diagnose the issue and provide a more accurate resolution. We may also be able to check for any ongoing investigations related to your concern. 

In the meantime, let's perform a manual download by clicking the Update button. Doing so imports the latest transactions from your bank account and guarantees that your financial data is up-to-date.

It's also possible that the issue may be on the bank's end. To verify, I recommend signing in to their website and checking for any messages, notifications, or alerts. 

If you've experienced a specific bank error, refer to Step 4 in this article for its corresponding resolution: What to do if you get a bank error or can't download transactions in QuickBooks Online.

Additionally, it's recommended to review your accounts in QBO to ensure they align with your bank statement.

You're always welcome to get back to us whenever you have any follow-up concerns about linking your bank account. The Community is open anytime to provide further assistance. Stay safe and have a nice day ahead.