If your serial subscription has expired you won't be able to receive issues. To renew your subscription you can click the 'Renew' button at the top of your subscription detail page.
Another option is to click the 'Renew' link to the right of the subscription on the Serial Collection page.
Once you click the 'Renew' link or button you will be presenting with renewal options.
The start date should be the date your subscription period starts.
For the subscription length you'll want to fill in one of the three fields presented: Number of num (issues), Number of months or Number of weeks.
Finally enter any notes you might have about this renewal.