Install Web Admin: Symfony Web Admin Error

I have installed a Symfony Web Admin and I am getting errors.
Login https://app.halalmovies.com
Fatal error: Uncaught Symfony\Component\Config\Definition\Exception\InvalidConfigurationException: The child node "resource_owners" at path "hwi_oauth" must be configured. in /homepages/4/d853560565/htdocs/belowdomain/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/ArrayNode.php:240 Stack trace: #0 /homepages/4/d853560565/htdocs/belowdomain/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/BaseNode.php(303): Symfony\Component\Config\Definition\ArrayNode->finalizeValue(Array) #1 /homepages/4/d853560565/htdocs/belowdomain/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/Processor.php(37): Symfony\Component\Config\Definition\BaseNode->finalize(Array) #2 /homepages/4/d853560565/htdocs/belowdomain/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/Processor.php(50): Symfony\Component\Config\Definition\Processor->process(Object(Symfony\Component\Config\Definition\ArrayNode), Array) #3 /homepages/4/d853560565/htdocs/belowdomain/vendor/hwi/oauth-bundle/DependencyInjection/HWIO in /homepages/4/d853560565/htdocs/belowdomain/vendor/symfony/symfony/src/Symfony/Component/Config/Definition/ArrayNode.php on line 240
Config https://app.halalmovies.com/config.php
Configuration Checker
This script analyzes your system to check whether is ready to run Symfony applications.
RECOMMENDATIONS
To enhance your Symfony experience, it’s recommended that you fix the following:
intl ICU version installed on your system (63.1) does not match the ICU data bundled with Symfony (57.1)
To avoid internationalization data inconsistencies upgrade the symfony/intl component.
a PHP accelerator should be installed
Install and/or enable a PHP accelerator (highly recommended).
short_open_tag should be disabled in php.ini
Set short_open_tag to off in php.ini*.
* Changes to the php.ini file must be done in "/etc/php7.1/php.ini".