Changes in priorities busy schedules the influx of internal referrals or simply lack of professionalism may result in ghosting from the recruiter. So don't take it personally. And if a recruiter ghosts you don't be dismayed but accept that it is a part of job-hunting. If you are lucky, you will meet another recruiter who will be more enthusiastic about your candidacy. If you still want to be recruited by the recruiter who ghosted you, you need to do the following:
Keep the conversation alive.
Thank her for her time.
Ask her for more information on the role.
Ask for her contact details.
Follow up with her.