What does 'your experience is not sufficient' mean?

To respond to a shift, you need a complete profile and, for some shifts, relevant work experience as well. Be as specific as possible about your work experience in your profile. Add your work experience quickly via the '+ Add Experience' button in 'My Profile'. Need more help? Check this article on what kind of work experience you need for specific shifts and read here in more detail how to add work experience to your profile yourself.