Blank page, php error

sometimes there is a blank page when I surf on the news-demosite. The errorlog show:

2016/05/03 19:34:29 [error] 3519#0: *146 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught TYPO3\Flow\Error\Exception: Notice: Accessing static property ReflectionClass::$name as non static in /var/www/neos/neos/Packages/Framework/TYPO3.Flow/Classes/TYPO3/Flow/Error/Debugger.php line 262 in /var/www/neos/neos/Packages/Framework/TYPO3.Flow/Classes/TYPO3/Flow/Error/ErrorHandler.php:80
I use the nginx web server with php7. Can someone help me?

Could you open an issue on for this?