A360 Tool in Alteryx

[Freymi]

Hi all, 

I'm trying to use the A360 Automation Anywhere Tool in Alteryx. I was able to connect to my control room, but I'm getting an error message:

Error: Automation Anywhere 360 (1): Connection to platform was not successful.

when trying to run it. 

I've look at the configuration of the tool, and need to choose a User under Variables, which I cannot select. 

Is the error message related to that? 

Any ideas how I can fix it? 

Thank you!