Error while installing Expecting value: line 1 column 1 (char 0) Mac FIX Guide

Error while installing Message, always appear to the system.
telling: Expecting value: line 1 column 1 (char 0)
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[mesavage]

I wonder if these programs designed to remove malware work initially and then get bought by business that inserts it's own malware so that it perpetuates new business for the next malware removal program that they developed to remove the malware they just installed on your computer to keep the cycle going.