#21 Blank screen

[Spyduck]

Hello, I have a blank screen and I can't figure out why.
-the login to the mysql database is correct
-Zend library added
-webacula.conf is in /etc/apache2 but returns :
apache2: Syntax error on line 265 of /etc/apache2/apache2.conf: Syntax error on line 8 of /etc/apache2/conf.d/webacula.conf: Cannot load mods-available/mod_rewrite.so into server: /etc/apache2/mods-available/mod_rewrite.so: cannot open shared object file: No such file or directory
Action 'configtest' failed.
The Apache error log may have more information.

does LoadModule rewrite_module modules/mod_rewrite.so refers to /mods-available/mod_rewrite.load ? or do I need to add something ?