] q is defined
] $VAR1 = undef;
] Can't call method "url" on an undefined value at SBL_Config.pm line 42 (#1)
]     (F) You used the syntax of a method call, but the slot filled by the
]     object reference or package name contains an undefined value.  Something
]     like this will reproduce the error:
]
]         $BADREF = undef;
]         process $BADREF 1,2,3;
]         $BADREF->process(1,2,3);
]
] Uncaught exception from user code:
] \tCan't call method "url" on an undefined value at SBL_Config.pm line 42.
]  at SBL_Config.pm line 42
] \tSBL_Config::check('SBL_Config=HASH(0x24bd2e8)', 'CGI=HASH(0x1dcdf40)') called at /var/www/html/streetcar/index.pl line 12
] Premature end of script headers: index.pl