I have a blkank page on my piwik site. I try to update but blank page remain.
The error that I can track is:
Undefined index: action_category_level_limit
in ‘C:\Vertrigo\VertrigoServ221\www\piwik\plugins\Actions\Actions.php’ at the line 974
#0 Piwik_ErrorHandler(…) called at [C:\Vertrigo\VertrigoServ221\www\piwik\plugins\Actions\Actions.php:974]
#1 Piwik_Actions::getSubCategoryLevelLimit(…) called at [C:\Vertrigo\VertrigoServ221\www\piwik\plugins\Actions\Actions.php:447]
#2 Piwik_Actions->__construct(…) called at [C:\Vertrigo\VertrigoServ221\www\piwik\core\PluginsManager.php:391]
#3 Piwik_PluginsManager->loadPlugin(…) called at [C:\Vertrigo\VertrigoServ221\www\piwik\core\PluginsManager.php:343]
#4 Piwik_PluginsManager->reloadPlugins(…) called at [C:\Vertrigo\VertrigoServ221\www\piwik\core\PluginsManager.php:235]
#5 Piwik_PluginsManager->loadPlugins(…) called at [C:\Vertrigo\VertrigoServ221\www\piwik\core\FrontController.php:278]
#6 Piwik_FrontController->init(…) called at [C:\Vertrigo\VertrigoServ221\www\piwik\index.php:52]