JaW Templates Support Forum

Hello.  Could you tell me which how to amend to change the default Woocommerce Error messages in Goodstore theme.  If an invalid Card Type is entered the current error message reads "The card type do not accepted".  I need to change this to "This Card Type is not Accepted" as this is better English grammer. 

The Goodstore theme seems to be amending the standard WooCommerce error messages but I cannot locate where the standard messages are stored.

Thanks.