Hello there, finance105,

Since you're still getting the same error despite following the steps provided by my colleague @Rea_M, I recommend contacting our QuickBooks support.

They'll be able to pull up your account and check what's causing the error. Here's how:

1. On your QuickBooks Online, click the Help icon.
2. Click Contact us.
3. Enter unable to subscribe, then click Let's talk.

Please know that we're here if you need anything else.