I am add a custom payment(payl8r) extension in opencart 2302. I have setup payl8r method and the plugin is also enabling and admin side proper working as well. but catalog side error undefined in payment method for Step 4: Delivery Method.below is my website URL you can check it:
https://www.getonthewater.co.uk
directory> upload/admin/controller/extension/payment/payl8r.php
please give me proper solution as soon as possible.