COBRT141 File already open - cannot be opened (Recoverable)

You have tried to open a file which is already open and so cannot be opened again.

Resolution:

Cancel your second attempt to open the file and continue to run your program if the fact that the file is already open is acceptable to you. However as this error implies that your program logic contains a mistake, you might want to close any open files, execute a STOP RUN statement and then recode.