I´m running some websites with WordPress and today I decided to install PIWIK and the WP-Piwik-Plugin.
Eleven of twelve intallations were complete simple and the plugin is runnig as it should.
Only one installation will cause problems:
when I try to activate the PlugIn the following error occurs:
undefined method wp_piwik::check_url() in /xxx/xxx/html/mywebsite/wp-content/plugins/wp-piwik/update/80800.php on line 2
Does anybody know where the error come from?