Help with cakephp shared hosting

Im by far not great and still on the learning path.

Trying to install a cakephp app on my shared host server. I get the following error. Any guidance would be apprciated.

2016-12-04 13:36:36 Notice: Notice (8): Use of undefined constant Router - assumed ‘Router’ in [/var/www/site.com/public_html/app/plugins/Search/config/routes.php, line 16]
Request URL: /app/
Client IP: 000.000.0.00.0.
Trace:
Cake\Error\BaseErrorHandler::handleError() - CORE/src/Error/BaseErrorHandler.php, line 146
include - ROOT/plugins/Search/config/routes.php, line 16
Cake\Core\Plugin::_includeFile() - CORE/src/Core/Plugin.php, line 399
Cake\Core\Plugin::routes() - CORE/src/Core/Plugin.php, line 348
Cake\Core\Plugin::routes() - CORE/src/Core/Plugin.php, line 336
include - ROOT/config/routes.php, line 55
Cake\Routing\Router::_loadRoutes() - CORE/src/Routing/Router.php, line 1019
Cake\Routing\Router::extensions() - CORE/src/Routing/Router.php, line 817
App\Controller\ErrorController::__construct() - APP/Controller/ErrorController.php, line 21
Cake\Error\ExceptionRenderer::_getController() - CORE/src/Error/ExceptionRenderer.php, line 124
Cake\Error\ExceptionRenderer::__construct() - CORE/src/Error/ExceptionRenderer.php, line 91
Cake\Error\ErrorHandler::_displayException() - CORE/src/Error/ErrorHandler.php, line 143
Cake\Error\BaseErrorHandler::handleException() - CORE/src/Error/BaseErrorHandler.php, line 180
Cake\Error\BaseErrorHandler::wrapAndHandleException() - CORE/src/Error/BaseErrorHandler.php, line 164
[main] - [internal], line ??

What is on line 16?
Does it work on development server?
Make sure small and cap letters are right, linux is case sensitive.