[URL Rewrite Module] - Error (ERROR_CONFIGURATION_REQUIRED)

I just upgraded my G2 from 2.0 > 2.1, I enabled and configured Url Rewrite, all the tests of .htaccess was sucessful, however when I try to activate the module I get this error. Does anybody have any ideas whats going on?

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Error
An error has occurred.

Back to the Gallery

Error Detail -
Error (ERROR_CONFIGURATION_REQUIRED)
in modules/rewrite/module.inc at line 171 (gallerycoreapi::error)
in modules/core/AdminModules.inc at line 105 (rewritemodule::activate)
in main.php at line 199 (adminmodulescontroller::handlerequest)
in main.php at line 87
in main.php at line 80
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Gallery version = 2.1 core 1.1.0
PHP version = 4.4.2 cgi
Webserver = Apache/1.3.33 (Unix)
Database = mysqlt 4.0.25-standard-log, lock.system=flock
Toolkits = ArchiveUpload, Exif, ImageMagick, NetPBM, Gd
Acceleration = partial/21600, partial/2160