I have installed square payments module.

In the checkout process step2 even though i entered working credit card details it was showing the error message like

" We could not initiate your transaction because of a problem with the card data you entered. Please correct the card data, or report this error to the Store Owner: SQ-NONCE-FAILURE"

Due to this i was not able move forward for the payment.

Even I enabled default theme, still same error.

I even tried disabling all other payment module(Paypal and CEOn manual card) still same error.

There is JS conflict browser console.

We haven't done any changes to default checkout flow.
Please see the attached screenshot.Click image for larger version. 

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