My next.js app give null after hours of sign in with social

import {
  BETTER_AUTH_SECRET,
  GOOGLE_CLIENT_ID,
  GOOGLE_CLIENT_SECRET,
  isDev,
  MONGODB_DB,
  MONGODB_URI,
  NEXT_PUBLIC_BASE_URL,
} from "@/shared/constants/env";
import { betterAuth } from "better-auth";
import { mongodbAdapter } from "better-auth/adapters/mongodb";
import { nextCookies } from "better-auth/next-js";
import { MongoClient } from "mongodb";
import { openAPI } from "better-auth/plugins";
import { admin, anonymous } from "better-auth/plugins";
import { adminAc, userAc } from "better-auth/plugins/admin/access";

const client = new MongoClient(MONGODB_URI, {
  replicaSet: "rs0",
  directConnection: true,
});
const db = client.db(MONGODB_DB);

export const auth = betterAuth({
  secret: BETTER_AUTH_SECRET,
  baseURL: NEXT_PUBLIC_BASE_URL,

  database: mongodbAdapter(db, {
    client,
    usePlural: true,
  }),
  emailAndPassword: {
    enabled: true,
  },

  socialProviders:
    GOOGLE_CLIENT_ID && GOOGLE_CLIENT_SECRET
      ? {
          google: {
            clientId: GOOGLE_CLIENT_ID,
            clientSecret: GOOGLE_CLIENT_SECRET,
          },
        }
      : {},

  plugins: [
    nextCookies(),
    ...(isDev ? [anonymous(), openAPI()] : []),
    admin({
      defaultRole: "user",
      adminRoles: ["admin", "owner"],
      roles: {
        owner: adminAc,
        admin: adminAc,
        user: userAc,
      },
    }),
  ],
});