"Receive File Over SFTP " smart service not working

Hi,

I am using the SFTP plugin v2.0 and Appian 20.2. When I am using other services - "Send File over SFTP" , "Get Remote Directory", "Create Directory", these are working.

But I am not able to receive file from the "Receive File Over SFTP" smart service.

I have tried both smart services - "Receive File over sftp" and "Receive File over SFTP (Basic Credentials)"

I am getting error in the smart service process node in both the cases. I have attached the error message for both the cases.

Any help is appreciated . Thanks 

Error message when using "Receive FIle over sftp" : 

Error message when using "Receive File over SFTP (Basic Credentials)" :