Configuring the Pass Through Authentication in ServiceDesk plus v.9

I enabled  Pass Through Authentication on Service Desk plus v.9

I didnt' create a new computer account with the script but I used the account already created during the join on the domain of the server. I set the password of computer account with the script "Setcomputerpass.vbs" and now I have this scenario:

--> Signle Sign-On function with the active directory user login

--> When I try to access on the server where Service Desk is installed, I get the following error:

"The trust relationship between this workstation and the primary domain failed"

Could you tell me why I have this issue? I dont' know if  however i need to create a new computer account with the script "Newcomputeraccount.vbs" of the software.

Thanks & Regards,

Ryo