jwt must be provided

JsonWebTokenError: jwt must be provided
    at module.exports [as verify] (/home/purwaftp/modifier-duplicator/node_modules/jsonwebtoken/verify.js:60:17)
    at decodePayload (/home/purwaftp/modifier-duplicator/lib/auth.js:73:14)
    at getSession (/home/purwaftp/modifier-duplicator/lib/auth.js:78:34)
    at /home/purwaftp/modifier-duplicator/routes/index.js:8:46
    at Layer.handle [as handle_request] (/home/purwaftp/modifier-duplicator/node_modules/express/lib/router/layer.js:95:5)
    at next (/home/purwaftp/modifier-duplicator/node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (/home/purwaftp/modifier-duplicator/node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (/home/purwaftp/modifier-duplicator/node_modules/express/lib/router/layer.js:95:5)
    at /home/purwaftp/modifier-duplicator/node_modules/express/lib/router/index.js:281:22
    at Function.process_params (/home/purwaftp/modifier-duplicator/node_modules/express/lib/router/index.js:335:12)