Thread:Extension talk:SphinxSearch/Site broke down after enabling sphinxsearch

Dear,

Hello, i've just installed SphinxSearch, however after i put in the extension,

$wgSearchType = 'SphinxMWSearch';

require_once( "$IP/extensions/SphinxSearch/SphinxSearch.php" );

my site broke down, with blank screen, at the moment, i think it's because not compatible with this version of MW?

cause after i comment out that require sphinxsearch.php line, everything went back to normal.

Thanks in advance for any help.

MediaWiki 1.20.4

Sphinx 2.0.6

SphinxSearch 0.8.5(got it through SVN link of the extension)