If Journal Search is not working, you can try finding periodicals through the Library Catalog.
Click on "Advanced Search" and under "Material Type" choose Journals. Make sure to search for the title of the journal, not the title of the article.
The JMU Library Catalog does not fully search our periodical collection; if you can not find what you are looking for, access Journal Search again when it is back online.
You also report the issue via Ask the Library.