Error Code 8591 is a system error connected to the Pervasive PSQL Workgroup Engine. You can refer to the steps below to resolve the error and continue using Sage
• Exit all the apps and programs on your computer and reboot your system
• Remove and then reinstall the Pervasive Workgroup Engine
• Check the firewall and antivirus settings to allow Sage 50 to run on your PC
• Speck to a software expert and find out how to repair and restart the Windows WMI Repository.

If you need help implementing any of these solutions you can call the Sage Customer Support Number and ask for additional assistance to fix Sage 50 Error Code 8591.

Solved: - How to Fix Sage 50 Error Code 8591