Exception: Warning: SessionHandler::read(): open(/var/www/html/magento2/var/session//sess_ts971p2acr8p4089md72fe2uho, O_RDWR) failed: No space left on device (28) in /var/www/html/magento2/vendor/magento/framework/Session/SaveHandler/Native.php on line 22 in /var/www/html/magento2/vendor/magento/framework/App/ErrorHandler.php:61
Stack trace:
#0 [internal function]: Magento\Framework\App\ErrorHandler->handler(2, 'SessionHandler:...', '/var/www/html/m...', 22, Array)
#1 /var/www/html/magento2/vendor/magento/framework/Session/SaveHandler/Native.php(22): SessionHandler->read('ts971p2acr8p408...')
#2 /var/www/html/magento2/vendor/magento/framework/Session/SaveHandler.php(138): Magento\Framework\Session\SaveHandler\Native->read('ts971p2acr8p408...')
#3 /var/www/html/magento2/vendor/magento/framework/Session/SaveHandler.php(83): Magento\Framework\Session\SaveHandler->callSafely('read', 'ts971p2acr8p408...')
#4 [internal function]: Magento\Framework\Session\SaveHandler->read('ts971p2acr8p408...')
#5 /var/www/html/magento2/vendor/magento/framework/Session/SessionManager.php(204): session_start()
#6 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\Session\SessionManager->start()
#7 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\Session\Generic\Interceptor->___callParent('start', Array)
#8 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\Session\Generic\Interceptor->Magento\Framework\Interception\{closure}()
#9 /var/www/html/magento2/generated/code/Magento/Framework/Session/Generic/Interceptor.php(26): Magento\Framework\Session\Generic\Interceptor->___callPlugins('start', Array, Array)
#10 /var/www/html/magento2/vendor/magento/framework/Session/SessionManager.php(141): Magento\Framework\Session\Generic\Interceptor->start()
#11 /var/www/html/magento2/generated/code/Magento/Framework/Session/Generic/Interceptor.php(14): Magento\Framework\Session\SessionManager->__construct(Object(Magento\Framework\App\Request\Http), Object(Magento\Framework\Session\SidResolver\Proxy), Object(Magento\Framework\Session\Config), Object(Magento\Framework\Session\SaveHandler), Object(Magento\Framework\Session\Validator), Object(Magento\Framework\Session\Storage), Object(Magento\Framework\Stdlib\Cookie\PhpCookieManager), Object(Magento\Framework\Stdlib\Cookie\CookieMetadataFactory), Object(Magento\Framework\App\State\Interceptor), NULL)
#12 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Magento\Framework\Session\Generic\Interceptor->__construct(Object(Magento\Framework\App\Request\Http), Object(Magento\Framework\Session\SidResolver\Proxy), Object(Magento\Framework\Session\Config), Object(Magento\Framework\Session\SaveHandler), Object(Magento\Framework\Session\Validator), Object(Magento\Framework\Session\Storage), Object(Magento\Framework\Stdlib\Cookie\PhpCookieManager), Object(Magento\Framework\Stdlib\Cookie\CookieMetadataFactory), Object(Magento\Framework\App\State\Interceptor), NULL)
#13 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\\Framewo...', Array)
#14 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Framewo...')
#15 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Framewo...')
#16 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Custome...')
#17 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Custome...')
#18 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Checkou...')
#19 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Checkou...')
#20 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Persist...')
#21 /var/www/html/magento2/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): Magento\Framework\ObjectManager\Factory\Compiled->get('Magento\\Persist...')
#22 /var/www/html/magento2/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Compiled->create('Magento\\Persist...')
#23 /var/www/html/magento2/vendor/magento/framework/Interception/PluginList/PluginList.php(250): Magento\Framework\ObjectManager\ObjectManager->get('Magento\\Persist...')
#24 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(119): Magento\Framework\Interception\PluginList\PluginList->getPlugin('Magento\\Framewo...', 'persistent_page...')
#25 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Http\Context\Interceptor->Magento\Framework\Interception\{closure}()
#26 /var/www/html/magento2/generated/code/Magento/Framework/App/Http/Context/Interceptor.php(26): Magento\Framework\App\Http\Context\Interceptor->___callPlugins('getVaryString', Array, Array)
#27 /var/www/html/magento2/vendor/magento/framework/App/Response/Http.php(108): Magento\Framework\App\Http\Context\Interceptor->getVaryString()
#28 /var/www/html/magento2/vendor/magento/module-page-cache/Model/App/Response/HttpPlugin.php(25): Magento\Framework\App\Response\Http->sendVary()
#29 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(121): Magento\PageCache\Model\App\Response\HttpPlugin->beforeSendResponse(Object(Magento\Framework\App\Response\Http\Interceptor))
#30 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Response\Http\Interceptor->Magento\Framework\Interception\{closure}()
#31 /var/www/html/magento2/generated/code/Magento/Framework/App/Response/Http/Interceptor.php(26): Magento\Framework\App\Response\Http\Interceptor->___callPlugins('sendResponse', Array, Array)
#32 /var/www/html/magento2/vendor/magento/framework/App/ExceptionHandler.php(103): Magento\Framework\App\Response\Http\Interceptor->sendResponse()
#33 /var/www/html/magento2/vendor/magento/framework/App/ExceptionHandler.php(70): Magento\Framework\App\ExceptionHandler->handleDeveloperMode(Object(Magento\Framework\App\Bootstrap), Object(Exception), Object(Magento\Framework\App\Response\Http\Interceptor))
#34 /var/www/html/magento2/vendor/magento/framework/App/Http.php(156): Magento\Framework\App\ExceptionHandler->handle(Object(Magento\Framework\App\Bootstrap), Object(Exception), Object(Magento\Framework\App\Response\Http\Interceptor), Object(Magento\Framework\App\Request\Http))
#35 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\App\Http->catchException(Object(Magento\Framework\App\Bootstrap), Object(Exception))
#36 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\App\Http\Interceptor->___callParent('catchException', Array)
#37 /var/www/html/magento2/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Http\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Bootstrap), Object(Exception))
#38 /var/www/html/magento2/generated/code/Magento/Framework/App/Http/Interceptor.php(26): Magento\Framework\App\Http\Interceptor->___callPlugins('catchException', Array, Array)
#39 /var/www/html/magento2/vendor/magento/framework/App/Bootstrap.php(267): Magento\Framework\App\Http\Interceptor->catchException(Object(Magento\Framework\App\Bootstrap), Object(Exception))
#40 /var/www/html/magento2/pub/index.php(40): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor))
#41 {main}