When errors are found in papers that have already been published, the journal will decide what should be done and may consult the editor(s), author(s), and author(s)’ institution(s). Errors made by the authors can be fixed with a corrigendum, while those made by the publisher can be fixed with an erratum.
Instances of misconduct or inaccuracies that have a major impact on the conclusions may call for a retraction or a declaration of concern. For these situations, IRJMS adheres to the COPE retraction standards.
COPE guidelines are available here: https://publicationethics.org/files/cope-retraction-guidelines-v2.pdf