SYSPRO 6 or 7
Please refer to the following article for resolution: Re-register the SysPro Encore.dll
SYSPRO 8
1) Verify that riteSCAN Admin > General Settings > SYSPRO Version is set to V8.
2) Verify that riteSCAN Admin > System Setup > SYSPRO Connection Settings > WCF Address is set correctly to connect to your SYSPRO Communication Service.