We can take some troubleshooting measures to identify if the error you encountered is related to your browser, @londonoj.

To begin, let's access your account through your browser's incognito mode. An incognito window is a privacy feature that operates without storing local data that could be retrieved at a later date. Please refer to the following keyboard shortcuts based on your browser type:

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

If this fixes the issue, proceed to, you can proceed to clear the browser's cache to eliminate common errors that may hinder the application from working properly. Additionally, I recommend using  other supported browsers to see if the issue persists. 

If the issue persists, I recommend contacting our QuickBooks Online Support team. Our team of experts has specialized tools and can even share your screen to take a closer look at the problem preventing you from upgrading your QuickBooks subscription. They can also create a ticket for further investigation if needed. Here's how to contact the team:

1. Go to Help (?) in your QuickBooks Online company.

2. Select either of these tabs:

• Assistant tab and type Talk to a human.
• Search tab and click on Contact us to connect with a support expert.

3. Choose how you want to reach us (phone or chat).

In addition, you can visit our account management page to learn how to manage passwords and account users, view account fees, and much more in QuickBooks Online.

Don't hesitate to reach out to us if you have further questions about managing subscriptions in QBO. We'll always be here in the Community to help. Best regards.