Expected 1 line between description and annotations, found 0.

Use statements should be sorted alphabetically. The first wrong one is Piwik\Common.

Class \Piwik\Plugin\API should not be referenced via a fully qualified name, but via a use statement.

There must be one empty line after class opening brace.

Class name \Piwik\DataTable in @return should be referenced via a fully qualified name.

Expected 1 blank line after method, found 0.

The placement of "public static methods" group is invalid. Last group was "private static methods" and one of these is expected after it: private static methods, magic methods

Class \Exception should not be referenced via a fully qualified name, but via a use statement.

Class \Exception should not be referenced via a fully qualified name, but via a use statement.