ReferenceError: /root/project/httpWebsite/views/error.jade:4
    2| 
    3| block content
  > 4|   h1= message
    5|   h2= error.status
    6|   pre #{error.stack}
    7| 

title is not defined
    at eval (eval at exports.compile (/root/project/httpWebsite/node_modules/jade/lib/jade.js:171:8), <anonymous>:16:58)
    at /root/project/httpWebsite/node_modules/jade/lib/jade.js:172:35
    at Object.exports.render (/root/project/httpWebsite/node_modules/jade/lib/jade.js:206:14)
    at View.exports.renderFile [as engine] (/root/project/httpWebsite/node_modules/jade/lib/jade.js:233:13)
    at View.render (/root/project/httpWebsite/node_modules/express/lib/view.js:135:8)
    at tryRender (/root/project/httpWebsite/node_modules/express/lib/application.js:657:10)
    at Function.render (/root/project/httpWebsite/node_modules/express/lib/application.js:609:3)
    at ServerResponse.render (/root/project/httpWebsite/node_modules/express/lib/response.js:1039:7)
    at /root/project/httpWebsite/app.js:51:7
    at Layer.handle_error (/root/project/httpWebsite/node_modules/express/lib/router/layer.js:71:5)