The Open Access logo is displayed on my record but the file does not contain my paper

HAL uses the OADOI service and retrieves the URL provided by this service.
If the file does not match your paper, first check that the DOI present in the record metadata is correct, that is, the link on the publisher’s site points to your paper.
If the DOI is correct, the error must be corrected on the site hosting the file found by the OADOI service. You can locate the URL of the file by scrolling your mouse over the Open Access logo: the url appears at the bottom of your screen. This gives you informations that allow you to report this error to the hosting website or repository.