Error when rendering a 404 before loading anything else after restart

error.txt

Error: Cannot find module 'hbs'
    at Function.Module._resolveFilename (module.js:338:15)
    at Function.Module._load (module.js:280:25)
    at Module.require (module.js:364:17)
    at require (module.js:380:17)
    at new View (/Users/hannah/Ghost/Ghost/node_modules/express/lib/view.js:78:30)
    at EventEmitter.render (/Users/hannah/Ghost/Ghost/node_modules/express/lib/application.js:569:12)
    at ServerResponse.render (/Users/hannah/Ghost/Ghost/node_modules/express/lib/response.js:961:7)
    at renderErrorInt (/Users/hannah/Ghost/Ghost/core/server/errors/index.js:323:36)
    at Object.errors.renderErrorPage (/Users/hannah/Ghost/Ghost/core/server/errors/index.js:361:16)
    at Object.errors.error404 (/Users/hannah/Ghost/Ghost/core/server/errors/index.js:370:18)
    at Object.errors.error500 (/Users/hannah/Ghost/Ghost/core/server/errors/index.js:384:25)
    at Layer.handle_error (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/layer.js:71:5)
    at trim_prefix (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:310:13)
    at /Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:280:7
    at Function.process_params (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:330:12)
    at next (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:271:10)
    at Layer.handle_error (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/layer.js:67:12)
    at trim_prefix (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:310:13)
    at /Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:280:7
    at Function.process_params (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:330:12)
    at next (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:271:10)
    at Layer.handle_error (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/layer.js:67:12)
    at trim_prefix (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:310:13)
    at /Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:280:7
    at Function.process_params (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:330:12)
    at next (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:271:10)
    at Layer.handle_error (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/layer.js:67:12)
    at trim_prefix (/Users/hannah/Ghost/Ghost/node_modules/express/lib/router/index.js:310:13)