Still upgrading to V157, PHP739, Responsive classic green template

Added this Invoice Payment Method plugin and it works fine in English but got some PHP warnings in my German site.
The warnings below are about AUTHORIZENET and FIRSTDATA; I do not use any of these payment methods.
I could fix the problem and stop the warnings by defining each "status" as false in each payment method in \languages\german\modules\payment

Code:
PHP Warning: Use of undefined constant MODULE_PAYMENT_AUTHORIZENET_STATUS

PHP Warning: Use of undefined constant MODULE_PAYMENT_AUTHORIZENET_AIM_STATUS

PHP Warning: Use of undefined constant MODULE_PAYMENT_FIRSTDATA_PAYMENTPAGES_STATUS