How to resolve the Fail to update configuration for add-on error on heavy Forwarder?

Hi I Installed a Add-on on the Heavy Forwarder, when I try to setup the Add-On using API and credentials, its showing the error "Fail to update configuration for add-on xxx" but the add-on is working on other heavy Forwarder -2. Both are running under splunk user. I tried to copy the installation file from one HF to other and i got the below error, if its a permissions issue how to resolve this one? "Fail to load configuration for add-on xxx"