BPMN config assign bb - NullPointerException in ControllerExecution

The exception msg is the following: 

2020-09-10T13:48:43.128Z|955df6f6-c886-475a-a034f5b44bbe8c86|o.o.s.b.i.flowspecific.tasks.ControllerExecution - An exception occurred while fetching Controller Actor,Scope and Action
java.lang.NullPointerException: null
at org.onap.so.bpmn.infrastructure.flowspecific.tasks.ControllerExecution.setControllerActorScopeAction(ControllerExecution.java:81)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.camunda.bpm.engine.impl.javax.el.BeanELResolver.invoke(BeanELResolver.java:479)