what is 503 privoxy message?

hello,
whenever i browse websites, this message always comes up on the screen:


This is Privoxy 3.0.8 on localhost (127.0.0.1), port 8118, enabled

Connect failed
Your request for http://... (website)... could not be fulfilled, because the connection to... (website and ip address)... could not be established.

This is often a temporary failure, so you might just try again.

More Privoxy:
Privoxy main page
View & change the current configuration
View the source code version numbers
View the request headers.
Look up which actions apply to a URL and why
Documentation


Support and Service:
The Privoxy Team values your feedback. To provide you with the best support, we ask that you:

use the Support Tracker if you need help.
submit ads and configuration related problems with the actions files through the Actionsfile Feedback Tracker.
submit bugs only through the Bug Tracker. Please make sure that the bug has not been submitted yet.
submit feature requests only through the Feature Request Tracker.
read the instructions in the User Manual to make sure your request contains all the information we need.

it is really annoying and it shows almost everytime i click on a link.
please help me about it, what it is and what i should do to fix the problem.
i am not even sure if it is a virus or what.
thanks so much.
jen

[Malware Removal Specialist]

Jenny , go here , post the required logs and a specialist will assist you.