--- a/modules/org.openbravo.mobile.core/web/org.openbravo.mobile.core/source/component/ob-keyboard.js	2020-09-23 15:54:23.534418000 +0200
+++ b/modules/org.openbravo.mobile.core/web/org.openbravo.mobile.core/source/component/ob-keyboard.js	2020-09-23 15:53:53.626113000 +0200
@@ -1155,7 +1155,7 @@
     }
 
     if (button.command) {
-      payment = OB.MobileApp.model.paymentnames[button.command];
+      payment = OB.MobileApp.model.paymentnames ? OB.MobileApp.model.paymentnames[button.command]: null;
 
       if (payment) {
         button.$.button.tap = function() {