Start by reviewing the files in /opt/CA/WorkloadAutomationAE/SystemAgent/WA_AGENT/spool/*_SCH/MAIN/WAAE_WF0.1
You may find something similar to :
Tue Jan 10 10:09:26 2017 CAWA_E_20053 Error opening stdout "/shared/test/logs/job1.out": error 30 (Read-only file system).Error code: 30
Tue Jan 10 10:09:26 2017 CAWA_I_20018 Job failed. Exit code 30, Status:
If you do please follow up with your system administrators to ensure that the job owner has access to the targeted file system(s), directories, and files referenced in the job definition.