An Error occurred while handling another error:
yii\web\HeadersAlreadySentException: Headers already sent in /home/tirtaasasta/public_html/vendor/autoload.php on line 1. in /home/tirtaasasta/public_html/vendor/yiisoft/yii2/web/Response.php:366
Stack trace:
#0 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/web/Response.php(339): yii\web\Response->sendHeaders()
#1 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/web/ErrorHandler.php(136): yii\web\Response->send()
#2 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/base/ErrorHandler.php(123): yii\web\ErrorHandler->renderException(Object(yii\base\InvalidConfigException))
#3 [internal function]: yii\base\ErrorHandler->handleException(Object(yii\base\InvalidConfigException))
#4 {main}
Previous exception:
ReflectionException: Class mdm\admin\components\AccessControl does not exist in /home/tirtaasasta/public_html/vendor/yiisoft/yii2/di/Container.php:447
Stack trace:
#0 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/di/Container.php(447): ReflectionClass->__construct('mdm\\admin\\compo...')
#1 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/di/Container.php(374): yii\di\Container->getDependencies('mdm\\admin\\compo...')
#2 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/di/Container.php(159): yii\di\Container->build('mdm\\admin\\compo...', Array, Array)
#3 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/BaseYii.php(365): yii\di\Container->get('mdm\\admin\\compo...', Array, Array)
#4 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/base/Component.php(191): yii\BaseYii::createObject(Array)
#5 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/BaseYii.php(558): yii\base\Component->__set('access', Array)
#6 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/base/BaseObject.php(107): yii\BaseYii::configure(Object(yii\web\Application), Array)
#7 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/base/Application.php(206): yii\base\BaseObject->__construct(Array)
#8 /home/tirtaasasta/public_html/frontend/web/index.php(17): yii\base\Application->__construct('[<span class="s...')
#9 {main}

Next yii\base\InvalidConfigException: Failed to instantiate component or class "mdm\admin\components\AccessControl". in /home/tirtaasasta/public_html/vendor/yiisoft/yii2/di/Container.php:449
Stack trace:
#0 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/di/Container.php(374): yii\di\Container->getDependencies('mdm\\admin\\compo...')
#1 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/di/Container.php(159): yii\di\Container->build('mdm\\admin\\compo...', Array, Array)
#2 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/BaseYii.php(365): yii\di\Container->get('mdm\\admin\\compo...', Array, Array)
#3 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/base/Component.php(191): yii\BaseYii::createObject(Array)
#4 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/BaseYii.php(558): yii\base\Component->__set('access', Array)
#5 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/base/BaseObject.php(107): yii\BaseYii::configure(Object(yii\web\Application), Array)
#6 /home/tirtaasasta/public_html/vendor/yiisoft/yii2/base/Application.php(206): yii\base\BaseObject->__construct(Array)
#7 /home/tirtaasasta/public_html/frontend/web/index.php(17): yii\base\Application->__construct('[<span class="s...')
#8 {main}