Thread:Project:Support desk/Editing Page causes Script Error to Appear at Top

My Versions: MediaWiki: 1.16.5, PHP: 5.2.17, MySQL: 5.1.61

I've moved to a new host and when I edit a wiki page I get the following error at the top of the page:

Warning: file_exists [function.file-exists]: open_basedir restriction in effect. File(/home/wikipedia/blacklists/titles) is not within the allowed path(s): (/home/davidli1:/usr/lib/php:/usr/php4/lib/php:/usr/local/lib/php:/usr/local/php4/lib/php:/tmp) in /home/davidli1/public_html/rarewrestlingvideos.com/extensions/TitleBlacklist/TitleBlacklist.list.php on line 100

I did not get that error with my old host. I was using shared hosting for both my old and new host.