Error: "8504,104" appears on my Norton 2012 product

I keep getting the same error 8504.104 on my 2102 product.   I have downloaded the "fix" norton eraser.  It loaded onto my system and I ran it.  I get two messages one says it is fixed and the other says there was an error when in the eraser program.  15 to 20 minutes later once again I get the same error.