Hi there Red_Orange,
Making sure that your server is set up correctly is important to make sure you and your team can work as effectively as possible. QuickBooks Desktop is a great tool to help you with your bookkeeping that's able to be used by multiple computers on a server. I can point you in the right direction.
The error that was seen in the screenshot that you've posted would be caused by your server itself, and not the QuickBooks Program. In order to get this error resolved, I recommend reaching out to your local IT professional, as they'll be able to assist you with setting up your server and get through these messages.
If you have any other questions about QuickBooks, feel free to reach out here.
