Fatal Error during software push

Fatal Error during software push

Hello,
I've been trying to push Tenable.io to just a single laptop for testing purposes. The thing with Tenable is that I also must run a command after the agent is installed in order to connect that device to our Tenable server. I've made a package in ManageEngine with the installer. ManageEngine is able to actually push the installer, but the command afterwards is where I'm having trouble. 

Here are somethings that I tried that have not worked: 1) I put the command in the arguments. Came back with invalid argument error. 2) I've put a script in the post-deployment that runs the command. Came back with an "Access Denied" error. 3) I did the same as option 2, except ran it with the privilege's of a domain admin. Came back with a "Fatal Error" error. 

Only having an error that says "Fatal Error" is pretty annoying, is there any where I can get more information on why it failed? Also, is there any thing that I'm doing incorrect? Maybe there's something weird about the script that I don't know about.

Thank you!

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