Cannot execute a ssh pipe as "No such file or directory"

[marcomasi]

Hello, I am trying to access via ssh pipe to a remote server, and to execute a script (versioned inside my repo) which is supposed to erase the data on my remote server and the create a few folders.

My pipe config is 

script:            

- echo "Clean web server fs and add necessary folders"            

  - pipe: atlassian/sshrun:0.3.0              

       variables:                  

         SSH_USER: $SSH_USER          # my ssh user        

         SERVER: $STAGING_SFTP_HOST                  # the remote host IP

         MODE: 'script'                  # the script is inside the bitbucket repo

         COMMAND: 'build/prepare-server.sh $STAGING_SFTP_REMOTE_PATH'   #a variable is passed to the script as a parameter

         PORT: '2222'                  # custom ssh port

         DEBUG: 'true'

The execution fails in a very ...silent way:

INFO: Executing the pipe...

INFO: Using default ssh key

/pipe.sh: line 72: build/prepare-server.sh  /my.remote.path/: No such file or directory

INFO: Executing script build/prepare-server.sh /my.remote.path/ on 123.123.123.123

Note: The IP written above is not the real one.

Any suggestion?

Thanks!