Convex Auth + Next.js headers error

import {
  convexAuthNextjsMiddleware,
  createRouteMatcher,
  nextjsMiddlewareRedirect,
} from "@convex-dev/auth/nextjs/server";

const isSignInPage = createRouteMatcher(["/signin"]);

export default convexAuthNextjsMiddleware(async (request, { convexAuth }) => {
  if (isSignInPage(request) && (await convexAuth.isAuthenticated())) {
    return nextjsMiddlewareRedirect(request, "/");
  }
  if (!(await convexAuth.isAuthenticated()) && !isSignInPage(request)) {
    return nextjsMiddlewareRedirect(request, "/signin");
  }
});

export const config = {
  // The following matcher runs middleware on all routes
  // except static assets.
  matcher: ["/((?!.*\\..*|_next).*)", "/", "/(api|trpc)(.*)"],
};