Why do I get the error "For Input String 'COR'" while analyzing KPI data from one among the three views? I get KPI data results properly with the other two views.

Why do I get the error "For Input String 'COR'" while analyzing KPI data from one among the three views? I get KPI data results properly with the other two views.

The reason could be a mismatch between the data types of the measure defined and the column to which it is pointing to, in the data model.