Hello, I recently updated our Piwik installation from 2.12.0-r2 to 2.15.0, about five days ago.
Today we ran into an issue where the dashboard widgets were all showing this error:
Fatal error: Cannot redeclare class Piwik\Plugin\Manager in C:\inetpub\oursite\core\Plugin\Manager.php on line 39
I Restarted the IIS server and that seemed to have made the error go away and things are back to normal, but I expect it may happen again. Do anyone have insight into what might have caused this? Any assistance is greatly appreciated, thank you.
Windows Server 2008 R2 (IIS 7.5)
Piwik 2.15.0 (upgraded from 2.12.0-r2)
MySQL Server 5.6