Hi.. I'm having problems on my office website which uses Magento ver. 2.1.8, error occurred:
Warning: Uncaught Exception: Warning: SessionHandler::read(): open(/home/rkmagento/site/current/var/session/sess_8o2ba7os1c42bk3ko4tjg49fe0, O_RDWR) failed: No space left on device (28) in /home/rkmagento/site/releases/201803011210/vendor/magento/framework/Session/SaveHandler/Native.php on line 22 in /home/rkmagento/site/releases/201803011210/vendor/magento/framework/App/ErrorHandler.php:61 Stack trace: #0 [internal function]: Magento\Framework\App\ErrorHandler->handler(2, 'SessionHandler:...', '/home/rkmagento...', 22, Array) #1 /home/rkmagento/site/releases/201803011210/vendor/magento/framework/Session/SaveHandler/Native.php(22): SessionHandler->read('8o2ba7os1c42bk3...') #2 /home/rkmagento/site/releases/201803011210/vendor/magento/framework/Session/SaveHandler.php(93): Magento\Framework\Session\SaveHandler\Native->read('8o2ba7os1c42bk3...') #3 [internal function]: Magento\Framework\Session\SaveHandler->read('8o2ba7os1c42bk3...') #4 /home/rkmagento/site/releases/201803011210/vendor/magento/framework/Session/SessionM in /home/rkmagento/site/releases/201803011210/vendor/magento/framework/App/ErrorHandler.php on line 61
There has been an error processing your request
Recoverable Error: session_regenerate_id(): Failed to create(read) session ID: user (path: /home/rkmagento/site/current/var/session) in /home/rkmagento/site/releases/201803011210/vendor/magento/framework/Session/SessionManager.php on line 301
Error log record number: 466061085185
What happened to my office website? please help, thank you
You ran out of disk space wherever your sessions are stored.
BTW. Magento 2.1.8 is ancient! You REALLY need to upgrade your Magento!
If your disk space is low then you may have to scale server resources. If you are using a managed hosting solution then resources can be easily scaled with just a click.