Extension talk:Rating

This extension doesn't work, or the instructions are bad ?
 * Hello I am the author of this extension, what exactly was the problem you encountered? What's your MediaWiki version? Did you sign up for a key at ReCaptcha.org? Did you initialize the database by adding the tables? --Sanford.poon 03:53, 28 August 2007 (UTC)

The vision is 1.9.3.I didn't sign up for a key at recaptcha.org. when I finished all steps,my wiki couldn't work at all. it printed as:parse error syntax error unexpected T_REQUIRE_ONCE iN.....