Oops… there was a problem during the request. Maybe the server had a temporary issue, or maybe you requested a report with too much data. Please try again. If this error occurs repeatedly please contact your Piwik administrator for assistance.
After making the change, you will be able to login again.
You may also disable this security feature (not recommended). To do so edit config/config.ini.php and add:
There are different ways you can get help. There is free support via the Piwik Community and paid support
provided by the Piwik team and partners of Piwik. Or maybe do you have a bug to report or want to suggest a new