Adblock plus creates issues when used for Piwik app. AdblockPlus blocks some javascript from executing because of their filenames and/or path. It catches false positive in the Piwik user interface.

This was reported many times over, for example here.

Proposal

• Detect adblock plus is used, and show a warning/notification on the screen asking to disable it
• Contact Adblock plus team, and kindly ask them to fix their regex for piwik