Output field has been completely replaced by prefix string.
10
Cause . . . . . : The name of the output field has been completely replaced by the string specified as parameter for keyword PREFIX. If PREFIX('':n) was specified, the resulting name is blank. The specification is ignored.
Recovery . . . : Correct keyword PREFIX on the File-Description specification for the corresponding file. Ensure that the second parameter for PREFIX is less than the length of all the field names in the file. Compile again.