Macro instantiation request is failing in SO. See the attached logs for further details.

My service assignment is failing with bellow error:

2018-10-15T14:37:18.414Z|6463c98e-5587-4ccf-accb-2a8b43cb90a6| org.onap.so.client.exception.ExceptionBuilder - null

java.lang.NullPointerException: null

            at org.onap.so.bpmn.infrastructure.sdnc.tasks.SDNCAssignTasks.assignVnf(SDNCAssignTasks.java:77)

            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

            at java.lang.reflect.Method.invoke(Method.java:498)

Attach the full logs.

Could you help me identify the issue?

FYI, I see this patch: https://gerrit.onap.org/r/#/c/70387/ saying fixing bugs, so maybe fix is already in there.