FULL white blank page after rewriting .htaccess.

[Publiselect]

Hello , i was wondering if anyone can help me please, touching in to the .htacces file and saving the new configuration after refreshing the page i got a white page also entering in to my back office everything has turned on white blank page . i Changed @ini_set(‘display_errors’, ‘off’) to @ini_set(‘display_errors’, ‘on’). and i got this error message:

Fatal error: Undefined class name 'configuration' in /homez.301/topbouti/www/config/config.inc.php on line 64

please need know how can fix the fatal error, i dont want to rewrite or change anything more by my own .

Thank you .