Warning: fopen() - Warning: shell_exec()

[xalupeao]

Tengo dos problemas >.<

Con shell_exec():

Warning: shell_exec() has been disabled for security reasons in /var/www/virtual/ccentral.cl/htdocs/panel/games/mohaa/stop.php on line 26

Y fopen():

Warning: fopen() [function.fopen]: open_basedir restriction in effect. File(/proc/meminfo) is not within the allowed path(s): (/var/www/virtual/ccentral.cl/:/usr/share/php/) in /var/www/virtual/ccentral.cl/htdocs/panel/start.php on line 31

Warning: fopen(/proc/meminfo) [function.fopen]: failed to open stream: Operation not permitted in /var/www/virtual/ccentral.cl/htdocs/panel/start.php on line 31

Que solucion puedo tener o bien que configuraciones quieren que muestre para ver donde esta el problema.

Thanks :D