What does oops, reached your limits mean?

Every time I go to send a form, I get the above message.  This has never happened before and I need to send these forms out.  Please let me know.  Thanks!

Are you trying to send a form via email? https://www.jotform.com/help/303-How-to-send-a-form-via-email, or are you trying to forward a submission? Please note that the daily limit on free accounts is 20. Let us know if you have more questions.