If your screen is showing you the sage 50 error 1712 then it may be because of the failure in operations of your system. There are some reasons that contribute to this failure. If there is an incorrect installation of software or incorrect un-installation then this error may prevail. Virus or malware interference on your system. If previously your system was not shut down properly then you may face this issue. Files missing from the company file or register entry can also cause the sage 50 error 1712.