you need to remove this:
Code:
<!-- following code added by server. PLEASE REMOVE -->
<script language="JavaScript" src="http://uk.geocities.com/js_source/ygIELib9.js?v3"></script><script language="JavaScript">yvSM=1;yvSMU='http://edit.my.yahoo.com/config/send_webmesg?.target=scimitar_ss1';yvVP=1;yvVPU='http://uk.profiles.yahoo.com/scimitar_ss1';var yviContents='http://geocities.yahoo.com/themis/as.php?cc=uk&s=382106064&l=NE&b=1&t=1200908409';yviR='uk';yfiEA(0);</script>
<!-- preceding code added by server. PLEASE REMOVE -->
as it says, "please remove" i would remove it; do you need this script for something? if not then remove it and your error will go away