A ver algun forero que conozca ese runtime.
Puede ser problema de acceso, provocado por querer escribir algun fichero en el directorio raiz.
Intenta ejecutarlo con derechos de administrador para comprobar.
---------- Post añadido el 7 de marzo de 2022 a las 21:32 ----------
Aqui tienes la explicacion del error
3.3.4 JMP0300 - JMP0399
---------- Post añadido el 7 de marzo de 2022 a las 21:34 ----------
JMP0320I-I/U
INPUT/OUTPUT ERROR. STM=$1. FILE=$2. '$3'. $4
System action
Discontinues error file processing, then continues program processing if the severity code is I; aborts the program if the severity code is U. The severity code is determined as follows:
I : The FILE STATUS clause is specified for file definition.
U : The FILE STATUS clause and error procedures are not specified.
Response
Eliminate the cause of the error according to the character string output for $3. The COBOL statement (START, READ, WRITE, REWRITE, or DELETE) that caused the input-output error is output in $1. The file name or access name of the processed file is output in $2. Table below shows the meanings of strings to be output in $3 and the actions to be taken. The error address is output in $4.