Please help with these error messages. I am as newbie as it gets. I feel confident making changes, and have researched enough to have some ideas, but prefer to make changes suggested by someone with experience. Thanks.

I recognize that all the errors are associated with the Common.inc.php file. I can post that if necessary.

Notice: Constant _SYSTEM_MODE already defined in /www/zzl.org/s/l/e/sleeplessgiantpac/htdocs/classes/commons/includes/Common.inc.php on line 38

Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. File(/www///domain.info.v2) is not within the allowed path(s): (/www/zzl.org/s/l/e/sleeplessgiantpac/htdocs) in /www/zzl.org/s/l/e/sleeplessgiantpac/htdocs/classes/commons/includes/Common.inc.php on line 192

Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. File(/www///domain.info) is not within the allowed path(s): (/www/zzl.org/s/l/e/sleeplessgiantpac/htdocs) in /www/zzl.org/s/l/e/sleeplessgiantpac/htdocs/classes/commons/includes/Common.inc.php on line 229

Warning: require_once() [function.require-once]: open_basedir restriction in effect. File(/www///classes/commons/lib/smarty/Smarty.class.php) is not within the allowed path(s): (/www/zzl.org/s/l/e/sleeplessgiantpac/htdocs) in /www/zzl.org/s/l/e/sleeplessgiantpac/htdocs/classes/commons/includes/Common.inc.php on line 78

Warning: require_once(/www///classes/commons/lib/smarty/Smarty.class.php) [function.require-once]: failed to open stream: Operation not permitted in /www/zzl.org/s/l/e/sleeplessgiantpac/htdocs/classes/commons/includes/Common.inc.php on line 78

Fatal error: require_once() [function.require]: Failed opening required '/www///classes/commons/lib/smarty/Smarty.class.php' (include_path='.:/usr/lib/php:/www//') in /www/zzl.org/s/l/e/sleeplessgiantpac/htdocs/classes/commons/includes/Common.inc.php on line 78