Here is my middleware code

import { NextResponse } from "next/server";
import { i18n } from "./i18n-config";
import { match as matchLocale } from "@formatjs/intl-localematcher";
import Negotiator from "negotiator";

function getLocale(request) {
const negotiatorHeaders = {};
request.headers.forEach((value, key) => {
negotiatorHeaders[key] = value;
});

const locales = i18n.locales; // Assuming 'locales' can be a mutable array

const languages = new Negotiator({ headers: negotiatorHeaders }).languages(
locales
);

const locale = matchLocale(languages, locales, i18n.defaultLocale);

return locale;
}

export function middleware(request) {
const {
nextUrl: { search },
} = request;
const urlSearchParams = new URLSearchParams(search);
const params = Object.fromEntries(urlSearchParams.entries());

const urlParams = "?" + new URLSearchParams(params);

const pathname = request.nextUrl.pathname;

const pathnameIsMissingLocale = i18n.locales.every(
(locale) => !pathname.startsWith(/${locale}/) && pathname !== /${locale}
);

if (pathnameIsMissingLocale) {
const locale = getLocale(request);
if (locale === i18n.defaultLocale) {
return NextResponse.rewrite(
new URL(
/${locale}${ pathname.startsWith("/") ? "" : "/" }${pathname}${urlParams},
request.url
)
);
}
return NextResponse.redirect(
new URL(
/${locale}${ pathname.startsWith("/") ? "" : "/" }${pathname}${urlParams},
request.url
)
);
}
}

export const config = {
matcher: ["/((?!api|_next/static|_next/image|favicon.ico).*)"],
};

I added robots.txt to the matcher, then i started having error in my homepage