Let's make sure you'll not be facing an issue with your subscription, joemcgloin.
To begin, can you share with me what specific error message you got? Also, are they any unusual responses in your QuickBooks Online account? I'm collecting additional details so I can implement an accurate solution.
While waiting for your response, let's make sure to update your credit card information. This ensures keeping your account active. Here's how:
Sign in to QuickBooks Online as a primary admin.
Go to the Gearicon.
Select Account and settings.
In the Billing & Subscriptiontab,
Next to your payment method, select Edit✎.
Update your credit card info.
Review the address for your credit card. It must be the same one that appears on your credit card statements.
Hit Save.
You can follow the steps below when updating the information. A private window can help QuickBooks work efficiently.
Google Chrome:Ctrl+ Shift+ N
Mozilla: Firefox and Microsoft Edge:Ctrl+ Shift+ P
Safari: Command+ Shift+ N
If that works, go back to your regular browser and clear the cache and browsing history. It gives your browser a fresh start. Another thing that you can do is switch to other supported browsers.