I'm using Piwik v.1.8.3-b1, revison 6513
In my daskboard I found this error:
Widgets: Frequency overview
Fatal error: Using $this when not in object context in /home/chuongdu/public_html/tracking/core/Visualization/Sparkline.php on line 81
In page Visiter/overview I also meet this error:
Report
Fatal error: Using $this when not in object context in /home/chuongdu/public_html/tracking/core/Visualization/Sparkline.php on line 81