Hello, I started a new nextjs project with nextauth. I got it to the point where signin works after configuring discord and credentials providers, but when I get redirected back from discord or after clicking sign in with credentials, I am redirected to /server, where I get a 404 page not found error.

I tried going to /api/auth/server and there I get a Error: This action with HTTP GET is not supported by NextAuth.js

I'm not sure why is it redirecting to just /server, can I configure this somewhere?

lib/auth.ts

import { NextAuthOptions } from "next-auth";
import DiscordProvider from "next-auth/providers/discord";
import CredentialsProvider from "next-auth/providers/credentials";

export const authOptions: NextAuthOptions = {
  providers: [
    DiscordProvider({
      clientId: process.env.DISCORD_CLIENT_ID,
      clientSecret: process.env.DISCORD_CLIENT_SECRET,
    }),
    CredentialsProvider({
      name: "Sign in",
      credentials: {
        email: {
          label: "Email",
          type: "email",
          placeholder: "test@test.com",
        },
        password: { label: "Password", type: "password" },
      },
      async authorize(credentials) {
        const user = { id: "1", name: "Test", email: "test@test.com" };
        return user;
      },
    }),
  ],
};

app/api/auth/[...nextauth]/route.ts

import NextAuth from "next-auth";
import { authOptions } from "@/lib/auth";

const handler = NextAuth(authOptions);

export { handler as GET, handler as POST };