uncaught exception: Trying to get property of non-object (errno: 8) in /var/www/fredandkate.com/deploy/lib/controllers/Aerostats.class.php at line #540Trying to get property of non-object

in file: /var/www/fredandkate.com/deploy/lib/controllers/Aerostats.class.php line 540
#0 /var/www/fredandkate.com/deploy/lib/controllers/Aerostats.class.php(540): _hx_error_handler(8, 'Trying to get p...', '/var/www/fredan...', 540, Array) #1 [internal function]: controllers_Aerostats->tag() #2 /var/www/fredandkate.com/deploy/lib/Reflect.class.php(45): call_user_func_array(Array, Array) #3 /var/www/fredandkate.com/deploy/lib/Route.class.php(179): Reflect::callMethod(Object(controllers_Aerostats), Array, Object(_hx_array)) #4 /var/www/fredandkate.com/deploy/lib/Route.class.php(122): Route::dispatch(Object(Route)) #5 /var/www/fredandkate.com/deploy/lib/Takeoff.class.php(31): Route::resolve('/blog/tag/Weddi...', Object(HTTPVerb), Object(Hash)) #6 /var/www/fredandkate.com/deploy/index.php(9): Takeoff::main() #7 {main}