I am a beginner in mainframes and have been trying to execute some JCL for a while and have checked a lot of resources but unable to find an answer.

At first time i got JOB07466 $HASP165 WORKLOAD ENDED AT ZOSZ MAXCC=0 CN(INTERNAL).
I got the this error when i ran job second time
JOB07522 $HASP165 WORKLOAD ENDED AT ZOSZ MAXCC=99 CN(INTERNAL).
Any help would be really appreciated.
Note:
I have to import some details from a DATA SET into a DB2 database .