I understand how you feel about getting the error message when opening the accountant's center on the client file in QuickBooks Desktop (QBDT), jessgjessg. 

I'm here to share additional steps in resolving the issue. Let's run the QuickBooks Desktop Toolhub and run the program diagnostic tool to resolve common issues. 

1. Close QuickBooks.
2. We recommend downloading the latest version (1.6.0.3) of the QuickBooks Tool Hub. Save the file somewhere you can easily find it (like your Downloads folder or Windows desktop). 
3. Note: If you've already installed Tool Hub before, you can find out which version you have.
   1. Select the Home tab. 
   2. Select About/What's New to view the version.
4. Open the file you downloaded (QuickBooksToolHub.exe).
5. Follow the on-screen steps to install and agree to the terms and conditions.
6. Double-click the icon on your Windows desktop to open the tool when the installation finishes hub.

For the complete process, check this article: Fix common problems and errors with the QuickBooks Desktop Tool Hub.

However, if the issue persists, I suggest contacting our Customer Care Team. They have the tools to pull up your account in a secure environment and perform a screen-sharing session so they can take a closer look and come up with a fix.

If you have any other product concerns or questions about the QuickBooks Tool Hub, leave a comment below. I'm always here to help. Have a good one!