Script Error after making changes

Question

First, I am not a website designer. I own a website and have
been making minor (text) changes using Contribute since I didn't
need to know html. I started a couple of years ago just using the
trial and never had any problems with it, but about a month ago
bought it...CS3.
After sitting down and making some changes, I published and
then got:
Script Error
Line: 17
Char: 1
Error: Object required
Code: 0
URL;
http://www.dirty-dog.com/contact/
I've looked at the source code, found line 17, but have no
idea what I'm supposed to do. I think this is an easy fix, right?
Can someone explain in "plain english" what I need to do?
Also, one day I somehow fixed it...just by moving stuff
around on the page. I also made some changes to other pages,
thought they were published (looked at all of them), but when I
went back yesterday, all the changes were gone?!? How is that
possible??? I'm going to try to paste the code here....

Answer 1

This is the contents of my log4j.xml, its under WEB-INF/lib
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
  <!-- A1 is set to be a ConsoleAppender -->
  <appender name="sout" class="org.apache.log4j.ConsoleAppender">
    <!-- A1 uses PatternLayout -->
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="%d [%c] %p - %m%n"/>
    </layout>
  </appender>
  <root>
    <!-- Set root logger level to DEBUG and its only appender to A1 -->
    <priority value="off"/>
    <appender-ref ref="sout"/>
  </root>
</log4j:configuration>