Error while reading the settings for task &1

What causes this issue?

Inconsistency determined for task &V1&.

System Response

Error message

How to fix this error?

Check if task &V1& exists. If this is not the case, create task &V1& or
remove task &V1& from the task group that has been assigned to the
dimension for the current period.

Error message extract from SAP system. Copyright SAP SE.