alguien sabe xq mi php esta lleno de erreros como:
Notice: Undefined variable: forum_admin in c:\appserv\www\php-nuke\mainfile.php on line 69

Notice: Use of undefined constant inside_mod - assumed 'inside_mod' in c:\appserv\www\php-nuke\mainfile.php on line 72

Notice: Undefined variable: inside_mod in c:\appserv\www\php-nuke\db\db.php on line 44

Notice: Use of undefined constant sitename - assumed 'sitename' in c:\appserv\www\php-nuke\mainfile.php on line 88

Notice: Use of undefined constant nukeurl - assumed 'nukeurl' in c:\appserv\www\php-nuke\mainfile.php on line 89

Notice: Use of undefined constant site_logo - assumed 'site_logo' in c:\appserv\www\php-nuke\mainfile.php on line 90

alguien sabe como puedo solucionarlo q no sea bajarme otro php .... si alguien sabe q me lo diga porfavor