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An Error occurred while handling another error:
exception 'yii\web\HeadersAlreadySentException' with message 'Headers already sent in /home/actu-ladlf/frontend/components/Controller.php on line 78.' in /home/actu-ladlf/vendor/yiisoft/yii2/web/Response.php:366
Stack trace:
#0 /home/actu-ladlf/vendor/yiisoft/yii2/web/Response.php(339): yii\web\Response->sendHeaders()
#1 /home/actu-ladlf/vendor/yiisoft/yii2/base/Application.php(656): yii\web\Response->send()
#2 /home/actu-ladlf/frontend/components/Controller.php(79): yii\base\Application->end()
#3 /home/actu-ladlf/vendor/yiisoft/yii2/base/Controller.php(155): frontend\components\Controller->beforeAction(Object(yii\web\ErrorAction))
#4 /home/actu-ladlf/vendor/yiisoft/yii2/base/Module.php(528): yii\base\Controller->runAction('error', Array)
#5 /home/actu-ladlf/vendor/yiisoft/yii2/web/ErrorHandler.php(108): yii\base\Module->runAction('site/error')
#6 /home/actu-ladlf/vendor/yiisoft/yii2/base/ErrorHandler.php(111): yii\web\ErrorHandler->renderException(Object(yii\web\NotFoundHttpException))
#7 [internal function]: yii\base\ErrorHandler->handleException(Object(yii\web\NotFoundHttpException))
#8 {main}
Previous exception:
exception 'yii\base\InvalidRouteException' with message 'Unable to resolve the request: site/signup' in /home/actu-ladlf/vendor/yiisoft/yii2/base/Controller.php:128
Stack trace:
#0 /home/actu-ladlf/vendor/yiisoft/yii2/base/Module.php(528): yii\base\Controller->runAction('signup', Array)
#1 /home/actu-ladlf/vendor/yiisoft/yii2/web/Application.php(103): yii\base\Module->runAction('site/signup', Array)
#2 /home/actu-ladlf/vendor/yiisoft/yii2/base/Application.php(386): yii\web\Application->handleRequest(Object(yii\web\Request))
#3 /home/actu-ladlf/frontend/web/index.php(18): yii\base\Application->run()
#4 {main}

Next exception 'yii\web\NotFoundHttpException' with message 'Page not found.' in /home/actu-ladlf/vendor/yiisoft/yii2/web/Application.php:115
Stack trace:
#0 /home/actu-ladlf/vendor/yiisoft/yii2/base/Application.php(386): yii\web\Application->handleRequest(Object(yii\web\Request))
#1 /home/actu-ladlf/frontend/web/index.php(18): yii\base\Application->run()
#2 {main}