Cannot read property 'productContentTypeId' of undefined

TypeError: Cannot read property 'productContentTypeId' of undefined
    at authenticateRequest (/var/app/current/services/authenticate_request.js:19:64)
    at router.get (/var/app/current/routes/brochures.js:35:25)
    at Layer.handle [as handle_request] (/var/app/current/node_modules/express/lib/router/layer.js:95:5)
    at next (/var/app/current/node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (/var/app/current/node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (/var/app/current/node_modules/express/lib/router/layer.js:95:5)
    at /var/app/current/node_modules/express/lib/router/index.js:281:22
    at Function.process_params (/var/app/current/node_modules/express/lib/router/index.js:335:12)
    at next (/var/app/current/node_modules/express/lib/router/index.js:275:10)
    at Function.handle (/var/app/current/node_modules/express/lib/router/index.js:174:3)