TypeError: res.senFile is not a function
   at /var/www/documentaryvoices.org/server_docVoices.js:261:6
   at Layer.handle [as handle_request] (/var/www/documentaryvoices.org/node_modules/express/lib/router/layer.js:95:5)
   at next (/var/www/documentaryvoices.org/node_modules/express/lib/router/route.js:144:13)
   at Route.dispatch (/var/www/documentaryvoices.org/node_modules/express/lib/router/route.js:114:3)
   at Layer.handle [as handle_request] (/var/www/documentaryvoices.org/node_modules/express/lib/router/layer.js:95:5)
   at /var/www/documentaryvoices.org/node_modules/express/lib/router/index.js:284:15
   at param (/var/www/documentaryvoices.org/node_modules/express/lib/router/index.js:365:14)
   at param (/var/www/documentaryvoices.org/node_modules/express/lib/router/index.js:376:14)
   at param (/var/www/documentaryvoices.org/node_modules/express/lib/router/index.js:376:14)
   at Function.process_params (/var/www/documentaryvoices.org/node_modules/express/lib/router/index.js:421:3)