Welcome to the Community, VTS.

I acknowledge the importance of connecting your PNC bank account to QuickBooks Online (QBO) to keep track of your financial records. Since you're still facing an error when connecting your bank to QBO, I'd be glad to help fix this. To make sure we're moving forward together, I'd like to ask you a question.

Could you please specify the exact error you are encountering while connecting your bank account to QuickBooks Online? This will help us identify the appropriate solution. Meanwhile, if the issue doesn't fall under common errors typically seen during bank connections, we recommend contacting our support team for further assistance. 

Please see the steps below:

1. Log into your QuickBooks Online account.

2. Click on the Help button located at the top of the page.

3. Navigate to the Search tab, enter your query, and press enter on your keyboard.

4. Select Contact Us.

5. Under the Callback option, click on the Have us call you button to input your details.

6. Finally, choose Get a Call to receive a callback from support.

For a comprehensive guide on obtaining assistance with your QuickBooks product or service, check out this article: Get help with QuickBooks products and services.

We can also check out this article on how to categorize the transactions you download from your bank in QuickBooks Solopreneur: Categorize bank transactions in QuickBooks Solopreneur.

If you have more questions regarding your bank account connection, feel free to reach out. We'll offer prompt assistance. Have a nice day.