An Error occurred while handling another error:
yii\web\HeadersAlreadySentException: Headers already sent in /var/www/sites/blog.internationalstudent.com/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php on line 270. in /var/www/sites/master/frameworks/yiisoft/yii2/web/Response.php:366
Stack trace:
#0 /var/www/sites/master/frameworks/yiisoft/yii2/web/Response.php(339): yii\web\Response->sendHeaders()
#1 /var/www/sites/master/frameworks/yiisoft/yii2/web/ErrorHandler.php(136): yii\web\Response->send()
#2 /var/www/sites/master/frameworks/yiisoft/yii2/base/ErrorHandler.php(111): yii\web\ErrorHandler->renderException(Object(yii\base\InvalidArgumentException))
#3 [internal function]: yii\base\ErrorHandler->handleException(Object(yii\base\InvalidArgumentException))
#4 {main}
Previous exception:
yii\base\InvalidArgumentException: Unable to resolve the relative route: site/international_student. No active controller is available. in /var/www/sites/master/frameworks/yiisoft/yii2/helpers/BaseUrl.php:137
Stack trace:
#0 /var/www/sites/master/frameworks/yiisoft/yii2/helpers/BaseUrl.php(99): yii\helpers\BaseUrl::normalizeRoute('site/internatio...')
#1 /var/www/sites/master/frameworks/yiisoft/yii2/helpers/BaseUrl.php(214): yii\helpers\BaseUrl::toRoute(Array, false)
#2 /var/www/sites/master/frameworks/yiisoft/yii2/helpers/BaseHtml.php(412): yii\helpers\BaseUrl::to(Array)
#3 /var/www/sites/www.internationalstudentloan.com/components/views/_header.php(41): yii\helpers\BaseHtml::a('International S...', Array, Array)
#4 /var/www/sites/master/frameworks/yiisoft/yii2/base/View.php(348): require('/var/www/sites/...')
#5 /var/www/sites/master/frameworks/yiisoft/yii2/base/View.php(257): yii\base\View->renderPhpFile('/var/www/sites/...', Array)
#6 /var/www/sites/master/frameworks/yiisoft/yii2/base/View.php(156): yii\base\View->renderFile('/var/www/sites/...', Array, Object(app\components\HeaderWidget))
#7 /var/www/sites/master/frameworks/yiisoft/yii2/base/Widget.php(236): yii\base\View->render('_header', Array, Object(app\components\HeaderWidget))
#8 /var/www/sites/www.internationalstudentloan.com/components/HeaderWidget.php(29): yii\base\Widget->render('_header', Array)
#9 /var/www/sites/master/frameworks/yiisoft/yii2/base/Widget.php(140): app\components\HeaderWidget->run()
#10 /var/www/sites/blog.internationalstudent.com/wp-content/themes/envisage-istl/header.php(85): yii\base\Widget::widget()
#11 /var/www/sites/blog.internationalstudent.com/wp-includes/template.php(730): require_once('/var/www/sites/...')
#12 /var/www/sites/blog.internationalstudent.com/wp-includes/template.php(676): load_template('/var/www/sites/...', true, Array)
#13 /var/www/sites/blog.internationalstudent.com/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#14 /var/www/sites/blog.internationalstudent.com/wp-content/themes/envisage-istl/single.php(1): get_header()
#15 /var/www/sites/blog.internationalstudent.com/wp-includes/template-loader.php(106): include('/var/www/sites/...')
#16 /var/www/sites/blog.internationalstudent.com/wp-blog-header.php(19): require_once('/var/www/sites/...')
#17 /var/www/sites/blog.internationalstudent.com/index.php(17): require('/var/www/sites/...')
#18 {main}