I occasionally get the below error on our live website.
Fatal error: Class Magento\Framework\Session\SaveHandler contains 3 abstract methods and must therefore be declared abstract or implement the remaining methods (SessionHandlerInterface::close, SessionHandlerInterface::write, SessionHandlerInterface::gc) in vendor/magento/framework/Session/SaveHandler.php on line 16
Tried some solution by changing with below code
interface SaveHandlerInterface extends \Zend_Session_SaveHandler_Interface
interface SaveHandlerInterface extends \SessionHandlerInterface
in file path:
But still, error exists after some time. Please anyone suggests this.