QuickBooks needs to be closed to use the tool hub.
The QuickBooks Tool Hub helps fix common errors. For the best experience, we recommend using Tool Hub on Windows 10, 64-bit.
Close QuickBooks.
We recommend you download the most recent version (1.4.0.0) of the QuickBooks Tool Hub. Save the file somewhere you can easily find it (like your Downloads folder or your Windows desktop). Note: If you’ve already installed Tool Hub before, you can find out which version you have. Select the Home tab. The version will be displayed on the bottom right or you can select About to view the version.
Open the file you downloaded (QuickBooksToolHub.exe).
Follow the on-screen steps to install and agree to the terms and conditions...
To know more about Quickbooks Tool hub visit here:https://quickbooksonline.online/quick-book-error/