changes regarding error handling

src/app.js

@@ -138,19 +138,29 @@ app.use(require("./routes/eventlineup").router)
 app.use(require("./routes/eventsheet").router)
 // app.use("/", indexRouter.team_router);
 
-// catch 404 and forward to error handler
-app.use(function (req, res, next) {
-  next(createError(404));
-});
-
 // error handler
 app.use(function (err, req, res, next) {
   // set locals, only providing error in development
+  if (err) {
   res.locals.message = err.message;
   res.locals.error = req.app.get("env") === "development" ? err : {};
+  if (typeof err === 'string' || err instanceof String) {
+    err = {
+      message: err
+    }
+  }
   console.log("error:", err);
   // render the error page
   res.status(err.status || 500).render("error", { title:"Error", layout: req.layout, message: err.message });
+}
+  else {
+    next();
+  }
 });
 
+// catch 404 and forward to error handler
+// app.use(function (req, res, next) {
+//   next(createError(404));
+// });
+
 module.exports = {app};