Installation 1.9.2 schlägt fehl - undefined offset

Hallo,

bei der Installation komme ich bis zum Database Setup. Dort erhalte ich folgende Fehlermeldung:

Undefined offset: 0
in ‘/www/htdocs/k007xxxx/analyse/core/Db/Adapter/Pdo/Mysql.php’ at the line 168

#0 Piwik_ErrorHandler(…) called at [/www/htdocs/k007xxxx/analyse/core/Db/Adapter/Pdo/Mysql.php:168]
#1 Piwik_Db_Adapter_Pdo_Mysql->isConnectionUTF8(…) called at

[/www/htdocs/k007xxxx/analyse/core/Piwik.php:2071]
#2 Piwik::isDatabaseConnectionUTF8(…) called at

[/www/htdocs/k007xxxx/analyse/plugins/Installation/Controller.php:240]
#3 Piwik_Installation_Controller->databaseCheck(…) called at

[/www/htdocs/k007xxxx/analyse/plugins/Installation/Installation.php:75]
#4 Piwik_Installation->dispatch(…) called at [:]
#5 call_user_func_array(…) called at [/www/htdocs/k007xxxx/analyse/libs/Event/Dispatcher.php:213]
#6 Event_Dispatcher->addObserver(…) called at [/www/htdocs/k007xxxx/analyse/core/PluginsManager.php:545]
#7 Piwik_PluginsManager->addPluginObservers(…) called at

[/www/htdocs/k007xxxx/analyse/core/PluginsManager.php:407]
#8 Piwik_PluginsManager->reloadPlugins(…) called at

[/www/htdocs/k007xxxx/analyse/core/PluginsManager.php:290]
#9 Piwik_PluginsManager->loadPlugins(…) called at

[/www/htdocs/k007xxxx/analyse/core/FrontController.php:267]
#10 Piwik_FrontController->init(…) called at [/www/htdocs/k007xxxx/analyse/index.php:52]

Was ist die Ursache? Habe über die Suchfunktion im Forum keine Hinweise gefunden.

Gruß
Lunablu