deploy error

deploy error

error:  Error running command deploy
error:  Nodejitsu Error (500): Internal Server Error
error:  
error:  There was an error while attempting to start your application.
error:  Error spawning drone
error:  Script prematurely exited
error:  
error:  This type of error is usually a user error.
error:  Error output from your application:
error:  
error:  Warning: connection.session() MemoryStore is not
error:  designed for a production environment, as it will leak
error:  memory, and obviously only work within a single process.
error:  node.js:201
error:          throw e; // process.nextTick error, or 'error' event on first tick
error:                ^
error:  Error: ENOENT, no such file or directory '/usr/local/src/foobraco/myBlog/myblog/data/comments/'
error:      at Object.readdirSync (fs.js:390:18)
error:      at Object.<anonymous> (/usr/local/src/foobraco/myBlog/myblog/node_modules/looseleaf/lib/models/Comment.js:14:18)
error:      at loadModules (/usr/local/src/foobraco/myBlog/myblog/node_modules/looseleaf/lib/looseleaf.js:104:41)
error:      at Object.init (/usr/local/src/foobraco/myBlog/myblog/node_modules/looseleaf/lib/looseleaf.js:66:3)
error:      at Object.<anonymous> (/usr/local/src/foobraco/myBlog/myblog/app.js:6:31)
error:      at Module._compile (module.js:441:26)
error:      at Object..js (module.js:459:10)
error:      at Module.load (module.js:348:31)
error:      at Function._load (module.js:308:12)
error:      at Function.runMain (module.js:479:10)
info:   Nodejitsu not ok