When i've installed Oxwall in second time (first=no problems) the script installer writed "register_globals on and safe_mode on" in fact they was Off and Off ...
I've find a error in Ow_install/view/controllers/install_requirements.php on line $_assign_vars['current']['ini'][$iniName] ? 'on' : 'off'; (changed to "On" and "Off"
because (for me) there was a case sensitivity problem !!!
It's solved ; )
sorry but i'm french : ) Great Job Oxwall Team !!!