java.lang.NullPointerException
at eu.elcom.e80a.platba.PlatbaActivity$3$1.run(PlatbaActivity.java:216)
at android.app.Activity.runOnUiThread(Activity.java:4713)
at eu.elcom.e80a.platba.PlatbaActivity$3.onPaymentSumChange(PlatbaActivity.java:211)
 at twig.saio.saioapi.database.OrderManager.triggerListener(OrderManager.java:173)
at twig.saio.saioapi.database.OrderManager.triggerListener(OrderManager.java:114)
at twig.saio.saioapi.database.OrderManager.addPayment(OrderManager.java:323)
at eu.elcom.e80a.platba.PlatbaActivity.putPayment(PlatbaActivity.java:259)
at eu.elcom.e80a.platba.PlatbaActivity.addToList(PlatbaActivity.java:400)