Slim Application Error

The application could not run because of the following error:

Details

Code: 2
Message: imagecreatefromstring(): Empty string or invalid image
File: /home/u677632193/domains/riverkingturismo.com.br/public_html/class/ControllerRouter.php
Line: 156

Trace

#0 [internal function]: Slim\Slim::handleErrors(2, 'imagecreatefrom...', '/home/u67763219...', 156, Array)
#1 /home/u677632193/domains/riverkingturismo.com.br/public_html/class/ControllerRouter.php(156): imagecreatefromstring('')
#2 [internal function]: ControllerRouter->{closure}(Array)
#3 /home/u677632193/domains/riverkingturismo.com.br/public_html/vendor/slim/slim/Slim/Router.php(200): call_user_func_array(Object(Closure), Array)
#4 /home/u677632193/domains/riverkingturismo.com.br/public_html/vendor/slim/slim/Slim/Slim.php(1210): Slim\Router->dispatch(Object(Slim\Route))
#5 /home/u677632193/domains/riverkingturismo.com.br/public_html/vendor/slim/slim/Slim/Middleware/Flash.php(86): Slim\Slim->call()
#6 /home/u677632193/domains/riverkingturismo.com.br/public_html/vendor/slim/slim/Slim/Middleware/MethodOverride.php(94): Slim\Middleware\Flash->call()
#7 /home/u677632193/domains/riverkingturismo.com.br/public_html/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#8 /home/u677632193/domains/riverkingturismo.com.br/public_html/vendor/slim/slim/Slim/Slim.php(1159): Slim\Middleware\PrettyExceptions->call()
#9 /home/u677632193/domains/riverkingturismo.com.br/public_html/class/ControllerRouter.php(428): Slim\Slim->run()
#10 /home/u677632193/domains/riverkingturismo.com.br/public_html/config.php(25): ControllerRouter->startRouter()
#11 /home/u677632193/domains/riverkingturismo.com.br/public_html/index.php(3): require_once('/home/u67763219...')
#12 {main}