title: Fatal error: Uncaught Error: Call to undefined function bcadd()
body: <p>After installed "eduTrac SIS" and accessing "dashboard" got this error</p>
  
  <p>Ubuntu 16.4, PHP 7.0(php7.0-fpm), Apache2, Nginx, </p>
  
  <p>URL gives error 500 and nginx/error.log displays,</p>
  
  <blockquote>
    <p>FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught
    Error: Call to undefined function PHPBenchmark\bcadd() in
    /var/www/html/eduTrac-SIS/app/src/vendor/phpbenchmark/phpbenchmark/lib/PHPBenchmark/Utils.php:18</p>
  </blockquote>