Why my Stripe API code expired?

I have a yardbook & I'm setup with stripe for credit card payments but my customers is trying to make a payment and there's the pop up saying my Api code is expired and not performing what is that and what does that mean?

If the issue persists, please try checking your API key in your Stripe account https://stripe.com/docs/dashboard#api-keys.

And then please try inputting the API key from your Stripe to your form, and to do that please follow this:

1) Go to Settings https://www.jotform.com/myaccount/settings and select Version 3:

2) Then open your form in editor and add &old to the URL:

3) Click your payment wizard button:

4) You will be able to access the API connect option

5) In the new window, you can enter your API keys,

6) Save that and go to settings again: https://www.jotform.com/myaccount/settings and change the builder back to Version 4:

Test and see if the issue persists.

Please let us know how it worked.

Thank you!

But I have a yardbook 
Sent from my MetroPCS 4G LTE Android Device
...

I'm sorry for the confusion, then you're in the wrong Support Forum, please go to Yardbook support page: http://support.yardbook.com/

Thank you!