What product have you if a subscription and auto renewal active the pledge of Mcafee might be applicable.
I do not know Mac at all so best you discuss this with support
Moving to a better forum as webadvisor not the place
Please contact Support who have access to a special tool that will resolve this issue (Unknown error from Scanners). Post back the status after you contact Support
As I was advised earlier I did contact Support but because my McAfee Internet security was provided by my Internet Provider I was told to contact them with the issue. We'll see what they say.