Fatal error: Uncaught exception 'Zend_Cache_Exception' with message 'Invalid id or tag '_media_frc_presse_dp28022008.pdf' : must use only [a-zA-Z0-9_]' in /usr/local/web/htdocs/frc/lib/Zend/Cache.php:165 Stack trace: #0 /usr/local/web/htdocs/frc/lib/Zend/Cache/Core.php(410): Zend_Cache::throwException('Invalid id or t...') #1 /usr/local/web/htdocs/frc/lib/Zend/Cache/Core.php(251): Zend_Cache_Core::_validateIdOrTag('_media_frc_pres...') #2 /usr/local/web/htdocs/frc/html/index.php(24): Zend_Cache_Core->load('_media_frc_pres...') #3 {main} thrown in /usr/local/web/htdocs/frc/lib/Zend/Cache.php on line 165