Sales cures all...I think Mark Cuban said that.

First question - do you have a way to even collect their money? That's where I would start. How do I know to ask that with so little information? This is an expert's forum :-)

Sounds like you need to get outside the box. You may have built the next amazing tool, but perhaps you are not a sales person. Sounds like you need online sales advisers.

You must have sales, or you do not have a business. Unless you are Daddy Warbucks, then maybe it's time to prove that you have a product that people will actually buy before you waste another minute of your life (that sounds like Kevin O'Leary). What's with all the Shark Tank advice!

There are some great case studies out there for exactly what you are going through. Maybe check out Air BnB's story... Maybe figure out how to reach customers - package it up in a new way. Do a joint venture deal with someone who already has the audience. Build some landing pages and take it to the next level.