When running Smartupdate 8.4.0, getting "Failed to read key

[AmitG0223]

I am attempting to run inventory on RHEL6 and when I run the command 

./smartupdate inventory --nodes localhost --baselines /mnt/packages/

smartupdate returns the following

Copying sum files to /var/tmp/localsum
Error: Cannot launch sum_service_x64 locally. Reason: Failed to read key. Please run cleancache and relaunch SUM. (Error: Failed to get key, run cleancache and relaunch SUM.)

I am unable to find a solution to the issue in google.  The sum execution log shows sum.8.4.0.failedreadingaeskey as the error code, also unable to find any solution to the error.

[KBSingh]

Hi Amit

Thank you for posting your question on HPE Forum.
Please stop all HPSUM windows and make sure HPSUM service is not running.
Please brownse to /hp/swpackages, find cleancache executable file.
Run the file and then launch HPSUM again. It should work.

Thank you
KB
HPE

[AmitG0223]

Thank you for your response, I did try cleancache and i still get the error message