Slim Application Error

The application could not run because of the following error:

Details

Code: 2
Message: Undefined array key 0
File: /home2/tecnwa33/opotencialfeminino.com.br/App/Model/Post.php
Line: 184

Trace

#0 /home2/tecnwa33/opotencialfeminino.com.br/App/Model/Post.php(184): Slim\Slim::handleErrors(2, 'Undefined array...', '/home2/tecnwa33...', 184)
#1 /home2/tecnwa33/opotencialfeminino.com.br/routes/site.php(58): App\Model\Post->getFromURL('Gatilhos-da-sed...')
#2 [internal function]: {closure}('Gatilhos-da-sed...')
#3 /home2/tecnwa33/opotencialfeminino.com.br/vendor/slim/slim/Slim/Router.php(200): call_user_func_array(Object(Closure), Array)
#4 /home2/tecnwa33/opotencialfeminino.com.br/vendor/slim/slim/Slim/Slim.php(1210): Slim\Router->dispatch(Object(Slim\Route))
#5 /home2/tecnwa33/opotencialfeminino.com.br/vendor/slim/slim/Slim/Middleware/Flash.php(86): Slim\Slim->call()
#6 /home2/tecnwa33/opotencialfeminino.com.br/vendor/slim/slim/Slim/Middleware/MethodOverride.php(94): Slim\Middleware\Flash->call()
#7 /home2/tecnwa33/opotencialfeminino.com.br/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#8 /home2/tecnwa33/opotencialfeminino.com.br/vendor/slim/slim/Slim/Slim.php(1159): Slim\Middleware\PrettyExceptions->call()
#9 /home2/tecnwa33/opotencialfeminino.com.br/index.php(24): Slim\Slim->run()
#10 {main}