My app requires local auth and keeps crashing

Question

Hi, every time i need to log in or create a new account i get back "Application failed to respond"

There should be no issue with the Port
const port = process.env.PORT || 8080;

Neither with the host
server.listen(port, "0.0.0.0", () => {
  console.log(`Server is running on port ${port}`);
});

And it's using (either way) a local strategy as below

passport.use(
  new LocalStrategy(
    { usernameField: "email" },
    async (email, password, done) => {
      try {
        const user = await User.findOne({ email });
        if (!user) {
          return done(null, false, { message: "Incorrect Email" });
        }
        const isPasswordValid = await bcrypt.compare(password, user.password);
        if (!isPasswordValid) {
          return done(null, false, { message: "Incorrect Password" });
        }
        return done(null, user);
      } catch (error) {
        return done(error);
      }
    }
  )
);

// Serializer & Deserializer
passport.serializeUser((user, done) => {
  done(null, user.id);
});
passport.deserializeUser(async (id, done) => {
  try {
    const user = await User.findById(id);
    done(null, user);
  } catch (err) {
    done(err);
  }
});

// Exports
module.exports = passport;