I've found the solution...
I'm trying to execute my php file in ssh live "php /volume1/web/index.php"
And I was an error with open_basedir
In the config of php in the panel, I had /volume1/web/: in the open_basedir.
So the line by default is : /var/services/tmp:
And you need to have /var/services/tmp:/volume1/web/: