|See if this helps:|
(No need to buy/use paid for utilities to get rid of it...)
And if the link above doesn't resolve it - then this a list of various possibles..
Also download/run ccleaner for mac:
The download link is top right. When you install the app - use the manual/custom option; do NOT use the automatic option. Carefully uncheck anything already "helpfully pre-checked for your convenience" and instal "only" the utility itself. That way you avoid installing all manner of stuff you neither need nor want.