Check if all the prerequisites are done. The prerequisites can be found here: https://www.manageengine.com/products/applications_manager/help/prerequisites-for-applications-manager.html#SharePointServer
If unable to add the SharePoint Server monitor in WMI mode, follow the below steps
Open command prompt in administrator mode in Applications Manager-installed machine.
Go to <Applications Manager Home>\working\conf\application\scripts directory.
Execute the below commands by replacing hostname, username and password with that of the reported SharePoint server:

Copy the output of the above command to a text file.
If unable to add the SharePoint Server monitor in Powershell mode, follow the below steps
Open powershell in administrator mode in the Applications Manager-installed machine.
Go to <Applications Manager Home>\working\conf\application\scripts\powershell directory.



Copy the output of the above command to a text file.