500 Internal Server Error

Undefined offset: 0 (8)

#0 /home/manizale/public_html/app/DetallePageController.php(13): flight\Engine->handleError(8, 'Undefined offse...', '/home/manizale/...', 13, Array)
#1 /home/manizale/public_html/index.php(32): app\DetallePageController->index('6968')
#2 /home/manizale/public_html/vendor/mikecao/flight/flight/core/Dispatcher.php(171): {closure}('local-en-arrien...', '6968')
#3 /home/manizale/public_html/vendor/mikecao/flight/flight/core/Dispatcher.php(145): flight\core\Dispatcher::callFunction(Object(Closure), Array)
#4 /home/manizale/public_html/vendor/mikecao/flight/flight/Engine.php(340): flight\core\Dispatcher::execute(Object(Closure), Array)
#5 /home/manizale/public_html/vendor/mikecao/flight/flight/core/Dispatcher.php(198): flight\Engine->_start()
#6 /home/manizale/public_html/vendor/mikecao/flight/flight/core/Dispatcher.php(144): flight\core\Dispatcher::invokeMethod(Array, Array)
#7 /home/manizale/public_html/vendor/mikecao/flight/flight/core/Dispatcher.php(49): flight\core\Dispatcher::execute(Array, Array)
#8 /home/manizale/public_html/vendor/mikecao/flight/flight/Engine.php(92): flight\core\Dispatcher->run('start', Array)
#9 /home/manizale/public_html/vendor/mikecao/flight/flight/core/Dispatcher.php(198): flight\Engine->__call('start', Array)
#10 /home/manizale/public_html/vendor/mikecao/flight/flight/Flight.php(77): flight\core\Dispatcher::invokeMethod(Array, Array)
#11 /home/manizale/public_html/index.php(46): Flight::__callStatic('start', Array)
#12 {main}