problem After Install ELS

[J4vad]

Hi

I Install ELS Security In the VPS , My VPS OS Is Centos and I Use Directadmin Panel ! I Login To SSH After Install ELS And Give Me Error

Error Is The Following :

login as: root
[email protected]'s password:
-bash: mail: command not found
-bash: echo: write error: Broken pipe

Please help me

Regards;