Array-element index is less than 1 or greater than the number of array elements; defaults to 1.
20
Cause . . . . . : An array-element index (specified following the comma after the array name in positions 49 - 62 of an Input-Field specification) is less than 1 or greater than the number of elements in the array.
Recovery . . . : Specify an array-element index with a value between 1 and the number of array elements. Compile again.
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