2999473 - Self monitoring template runtime error OBJECTS_OBJREF_NOT_ASSIGNED_NO

When clicking on a custom created self monitoring template this gives a 500 Interal error with runtime error OBJECTS_OBJREF_NOT_ASSIGNED_NO in ABAP Program CL_SFM_REPOSITORY_DEFINITION==CP

The following text can be found in ST22

Category               ABAP Programming Error
Runtime Errors         OBJECTS_OBJREF_NOT_ASSIGNED_NO
Except.                CX_SY_REF_IS_INITIAL
ABAP Program           CL_SFM_REPOSITORY_DEFINITION==CP
Application Component  SV-SMG-MON-SFM

|Short Text |
| Access using a 'NULL' object reference is not possible. |
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|What happened? |
| Error in the ABAP Application Program |
| |
| The current ABAP program "CL_SFM_REPOSITORY_DEFINITION==CP" had to be |
| terminated because it has |
| come across a statement that unfortunately cannot be executed.

Solution manager 7.2 SP10 - SP11

Self Monitoring, CL_SFM_REPOSITORY_DEFINITION==CP, Access using a 'NULL' object reference is not possible , KBA , SV-SMG-MON-SFM , Self Monitoring for Monitoring and Alerting , Problem