Site is midwestglobalgroup.com, running Zen Cart 1.5.5b (recently upgraded to this which is when my problems began). "Payeezy JS" payment module, php version 5.6. MySQL 5.1.63
When a customer selects "Next Day Delivery", "Second Day Delivery" or "Three Day Delivery" they get this message:
Error: Unable to process. Please report this message: Error Code:"401", Messages:"Invalid Tokenize Request. Please check your input."
I am baffled by this. Today this problem arose. I am not sure as no modifications were made to the site recently.
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