[Problème] ERREUR générale sous IE8

[franck17360]

Bonjour, sous mozilla, tout marche bien, sous IE8, j'ai ce message d'erreur :

Fatal error: Uncaught exception 'LogException' in /homepages/24/d411145543/htdocs/libraries/joomla/log/loggers/formattedtext.php:256 Stack trace: #0 /homepages/24/d411145543/htdocs/libraries/joomla/log/loggers/formattedtext.php(137): JLoggerFormattedText->initFile() #1 /homepages/24/d411145543/htdocs/libraries/joomla/log/log.php(382): JLoggerFormattedText->addEntry(Object(JLogEntry)) #2 /homepages/24/d411145543/htdocs/libraries/joomla/log/log.php(346): JLog->addLogEntry(Object(JLogEntry)) #3 /homepages/24/d411145543/htdocs/plugins/system/log/log.php(41): JLog->addEntry(Array) #4 [internal function]: plgSystemLog->onUserLoginFailure(Array) #5 /homepages/24/d411145543/htdocs/libraries/joomla/event/event.php(71): call_user_func_array(Array, Array) #6 /homepages/24/d411145543/htdocs/libraries/joomla/event/dispatcher.php(161): JEvent->update(Array) #7 /homepages/24/d411145543/htdocs/libraries/joomla/application/application.php(642): JDispatcher->trigger('onUserLoginFail...', Array) #8 /homepages/24/d411145543/htdocs/libraries/ in /homepages/24/d411145543/htdocs/libraries/joomla/log/loggers/formattedtext.php on line 256

Pouvez-vous m'aider svp ?

Merci.