<time itemprop="datePublished">%2$s</time>

Error: The text content of element time was not in the required format: The literal did not satisfy the time-datetime format. Syntax of time-datetime: One of the following: month, date, yearless date, time, local date and time, time-zone offset, global date and time, week, non-negative integer, or duration. For more information and examples, see the section on the datetime value in the HTML specification.