After the install of CA Workload Automation System Agent was complete, no value was assigned to the "security.cryptkey=" parameter in the agentparm.txt file.
Workload Automation Agent
The property for the encryption file is missing in silent installer properties file.
Enable or add the 'Strong Encryption' property in the silent installer properties file and repeat the agent installation.
STRONG_ENCRYPTION_FILE=$USER_INSTALL_DIR$$/$cryptkey.txt