i am trying to setup next auth for discord provider but i keep getting this session error whenever i try to login with the provider

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

const handler = NextAuth(authOptions)

export { handler as GET, handler as POST}

this is the api route

import {NextAuthOptions} from "next-auth";
import Discord from "next-auth/providers/discord";

export const authOptions: NextAuthOptions = {
    providers: [
        Discord({
            clientId: process.env.DISCORD_CLIENT_ID,
            clientSecret: process.env.DISCORD_CLIENT_SECRET,
        }),
    ]
}

this is the provider config


please help with this as i am new to the nextAuth