Re: error in language file.
About blank page: use Tiki Check to see if your error messages are activated. If they are not, activate them, and you may very well get a useful error message (like a line number).
Otherwise: https://www.google.com/search?q=php+syntax+checking
Also, you could post in on demo.tiki.org (9x or later) and use PluginCode with Syntax Highlighter
Best regards,
M ;-)