Declaration of Piwik_Log_APICall::log() should be compatible with that of Piwik_Log::log() 
in '/home/surlebou/www/piwik/modules/Log/APICall.php' at the line 52

#0  Piwik_ErrorHandler(2048, Declaration of Piwik_Log_APICall::log() should be compatible with that of Piwik_Log::log(), /home/surlebou/www/piwik/modules/Log/APICall.php, 52, Array ()) called at [/home/surlebou/www/piwik/modules/Piwik.php:873]
#1  Piwik::createLogObject() called at [/home/surlebou/www/piwik/modules/Piwik.php:873]
#2  Piwik::createLogObject() called at [/home/surlebou/www/piwik/modules/FrontController.php:311]
#3  Piwik_FrontController->init() called at [/home/surlebou/www/piwik/index.php:54]