fixed router

backend/server.js

@@ -11,6 +11,7 @@ app.use(cors());
 app.use(express.urlencoded({ extended: true }));
 app.set("view engine", "ejs");
 app.use(express.json());
+app.use("/api", apiRouter);
 
 const limits = {
   time: 1, // = 1 minute