3504030 - 'Destination host is unreachable' error when opening a SAC Story

When opening SAC Story, no data is shown and error occurs:

'Error: Destination host is unreachable!
Model: MODEL_NAME'

On the backend system, the following dump is generated in transaction ST22:

Category               ABAP programming error
Runtime Errors         OBJECTS_OBJREF_NOT_ASSIGNED
ABAP Program           CL_BICS_INA_COMMONS===========CP

You are trying to access a component with a 'ZERO' object reference (points to 'nothing'). Variable: " ".

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CL_BICS_INA_COMMONS, OBJECTS_OBJREF_NOT_ASSIGNED, trying to access a component with a 'ZERO' object reference, error in SAC Story, destination host is unreachable, no data in story , KBA , BW-BEX-OT-BICS-INA , BW INA provider , LOD-ANA-LDC-BW , SAC Live Data Connection BW , Problem