Why is there a validation error?

Question

Yii

Validator.nu shows this error on every page, what does it mean and how to fix it? And does it need to be removed at all?

Error: Bad value self for attribute rel on element link: The string self is not a registered keyword.

From line 19, column 1; to line 19, column 65

змеров.">↩<link href="/palto-for-all/page-3/display-32-records" rel="self">↩<link

Answer 1

And here YII?
htmlbook.ru/html/link/rel

Values
​​stylesheet
Specifies that the included file stores a style sheet (CSS).
alternate
Alternative type, used, for example, to specify a link to a file in XML format for describing news feeds, article announcements.