The deployment account used is not a member of the Active Roles Admin group.
The following result can be found in the C:\windows\temp\RemoteInstallService.exe.txt log file on the Active Roles Server computer
"Cannot query EDMS://rootDSE: Exception calling "FindOne" with "0" argument(s): "Access is denied." ARS 6.x and 7.0 not installed."
1. Add the deployment account used in Change Auditor to the Active Roles Admin group or use a deployment account which is already an Active Roles Admin.
2. Re-deploy the Change Auditor integration script.