Sails-js is lifting but localhost:1337 not working

Sails project is not working. After sails lift command from terminal. I did run the project through the localhost: 1337 port from browser. But its not loading, browser screen is blank. And there is no error message in terminal.

Note: The same project had run very well before few hours in same machine Please help why this error came suddenly

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via Sanyog Tiwari