I'll help you fix the error, Idealapplicancere.

One of the advantages when using QuickBooks Checking is that this is designed for small businesses and lets users open a bank account or even get fast payments with no monthly minimum requirements. The beautiful thing is this is powered by QuickBooks for seamless accounting and is free.

Normally, when you experience an error when processing a payment or fund transfer, it could be a browser-related issue. We can perform some troubleshooting steps to fix the problem. Use the  shortcut keys below  to access a private window (incognito): 

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Shift + N
• Microsoft Edge: Ctrl + Shift + P

When using incognito mode, this deletes cookies and browser history leaving your browser clean and easy to access any websites and error-free.

Once done, double-check if you can already use QuickBooks Checking. If it works, then go back to the main browser to clear its cache and delete some outdated files that might be the cause of the error. Otherwise, use a supported, up-to-date browser.

However, if the issue persists, contact our Payments Support to help you check what's causing this to happen and help you fix it. They have the tools to pull up your account in a secure environment and will have a chance to have one-to-one interactions with one of our representatives

Drop me a line if you have any further questions. I hope we stay in touch and get to work together again in the future.