Slim Application Error

The application could not run because of the following error:

Details

Code: 2
Message: Undefined array key 0
File: /home/conpla/public_html/vendor/empreendedorweb/php-classes/src/Model/Conteudo.php
Line: 51

Trace

#0 /home/conpla/public_html/vendor/empreendedorweb/php-classes/src/Model/Conteudo.php(51): Slim\Slim::handleErrors(2, 'Undefined array...', '/home/conpla/pu...', 51)
#1 /home/conpla/public_html/site.php(1170): Empreendedorweb\Model\Conteudo->get('0')
#2 [internal function]: {closure}('noticias', 'contabil', 'ecf--confira-a-...', 'links')
#3 /home/conpla/public_html/vendor/slim/slim/Slim/Router.php(200): call_user_func_array(Object(Closure), Array)
#4 /home/conpla/public_html/vendor/slim/slim/Slim/Slim.php(1210): Slim\Router->dispatch(Object(Slim\Route))
#5 /home/conpla/public_html/vendor/slim/slim/Slim/Middleware/Flash.php(86): Slim\Slim->call()
#6 /home/conpla/public_html/vendor/slim/slim/Slim/Middleware/MethodOverride.php(94): Slim\Middleware\Flash->call()
#7 /home/conpla/public_html/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#8 /home/conpla/public_html/vendor/slim/slim/Slim/Slim.php(1159): Slim\Middleware\PrettyExceptions->call()
#9 /home/conpla/public_html/index.php(16): Slim\Slim->run()
#10 {main}