Error using Com-Plete

Getting following error:
COMRJE0001-3 Invalid parameter list specified for RJE function.

How do I read the DUMP that is created in UDUMP since it is all in HEX to try and figure out what is causing this error?

When calling a JCL from a NATURAL map, it submits the JCL, runs successfully. When trying to get back to original calling map, it displays this message. When hitting Enter, comes automatically back to COM-PAss COMPLETE menu.

Any assistance would be appeciated.

Just an update to this error…we stowed the prgram in the production environement and it began working again. Not sure why i had to recompile in production and a catall did not work, but glad its working now.