Laravel“php artisan down”命令失败“无法创建文件”?

I am running Laravel 5.1 in a Centos 6.8 VPS.

The problem is when I simply try to run the command php artisan down it returns an error message saying the following:

 [ErrorException]                                                                                                                 
  touch(): Unable to create file /home/myUser/public_html/laravelProject/storage/framework/down because No such file or directory 

It looks like its trying to create the "down" file? I don't understand what is going on, perhaps you know what is going on.

Thank you for any help