Authorize.net payment plugin won't process a transaction

We are having issues with Authorize.net processing transactions within Chronoforms v5. All of the current transaction forms have processed these transactions in the past but now, nothing is getting processed and every submission is being declined with this message;

"This transaction cannot be accepted"
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We really need to get this resolved quickly but we are at a loss as to why or how to fix this issue. Your support, assistance and resolution regarding this matter is greatly needed and appreciated.
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Regards,
Mike B.

Hi coughlin,
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I can only guess that something has changed at the Anet end - are there any clues in their documentation or error messages?
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Bob

No, because we are using Vik Events to also process transactions via Authorize.Net and those forms are still working fine.

Hi MIke,
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Do you have a Response Code with the Error Message? I found this in the ANet docs.
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Bob