Could not determine node type (code: "PLT-2000") error

Hi there, accounts-waketow. 

Let me get the help you need to resolved the error PLT-2000.

To resolve the error message, let's perform some troubleshooting steps by logging in via incognito mode or a private window. This way, it confirms if the cache is the cause.

Here's how:

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox).
• Control + Option + P (Safari).

Once logged in, try to pay your tax due again. If it works, go to your default browser and clear the cache. See Clear cache and cookies to fix issues when using QuickBooks Online for more information. 

Otherwise, switch to a different browser like Firefox, Google Chrome, or Safari. The one you are currently on may be having a temporary issue with QuickBooks, and using a new browser for the moment will allow you to get back to work.

You may also visit this resource to know what computer and browser you need for the best QuickBooks experience: System requirements for QuickBooks Online, Accountant, and QuickBooks Self-Employed.

If you need additional assistance, feel free to reach out. I'm always here to help. Have a great day!