If you've been working on your application and received an error message indicating that your email address has expired, look for any nearby fields that are labeled "Email Valid Until" or something similar. Whether your email is expired or not depends on what date you've entered for that field. If you update this field to a date in the future, you should no longer run into that error. Additionally, if your email isn't going to expire and you didn't mean to fill out that date in the first place, clearing the date field should also work.
Email Expired Error Message
ApplyWeb Technical Support