Hi @Jewelle_Olarte,
Which version of OJS are you using, and which DOI registration agency (e.g. Crossref)? You may want to have a look at the following post: DOI not assigned (it sounds similar to what you’re facing, but maybe not quite). There is also our DOI documentation, which gives a little bit more context: https://docs.pkp.sfu.ca/doi-plugin/en/when-are-dois-assigned
And, the Crossref documentation, that gives further context, specific to Crossref (which tends to be the more common agency/plugin that many use): https://docs.pkp.sfu.ca/crossref-ojs-manual/en/config#updating-dois
-Roger
PKP Team