1. The visitor's security software is complaining about the cookie downloaded by the hit counter.
2. A.N.Other site on Bravenet was a problem and the ISP or security software provider has blacklisted the IP address.
For 1. get the user to test a link direct to a page with no hit counter.
For 2. Bravenet will need to follow up. I would suggest eliminating possibility number 1 then raising a support ticket.
I found that I had scroll bars which contained links to geocities URL (java script) They have been there for years.
I have removed these but Macafee still does not like it.
Raised a ticket will wait reply.
This morning my computer had removed macafee and Malware bytes so did a system restore and scans.