today i try to upgrade my piwik form latest 1.5 to 1.6.
If i upgrade the database i got an error:
Backtrace --> #0 Piwik_ErrorHandler(…) called at [:]#1 chdir(…) called at [/home/www/cwcity/hosting/d/e/derblitz/htdocs/piwik/core/Config.php:171]#2 Piwik_Config->__destruct(…) called at [:]