Reference modification length specification exceeds length of item %1.
30
Cause . . . . . : For a reference-modified data item, the (starting position + length specification - 1) equals %2, which is greater than the declared length of the item. For a reference-modified data intrinsic function, the (starting position + length specification - 1) equals %2, which is greater than the length of the returned value.
Recovery . . . : Change the starting position or the length specification.