Checked on the server and "scp" and "scp2" are in the PATH variable. Googled for it with no success. The log file doesn't gives any more info on this.
How did you check this? Where do you set PATH variable? Note that some startup scripts are not executed for non-interactive sessions (.bash_profile vs. bashrc.).
Quite tough to hide the search function in the Forum rules.
I do not understand. You do not see a Search function in the forum?