next.js - Problem with PageSpeed Insights: RPC::DEADLINE_EXCEEDED - Stack Overflow

I have a problem with my portfolio site: .

I can't test the site in PageSpeed Insights—I keep getting the error:

RPC::DEADLINE_EXCEEDED: context deadline exceeded
or a similar message.

However, Lighthouse tests work fine, and the site is already indexed.

I built it using Next.js 14.2.15 and next-intl 3.22, so the issue might be related to redirects in the language versions or my middleware file.

Here is my middleware.ts file:

import { NextResponse } from 'next/server';

export function middleware(request) {
    const { pathname, search } = request.nextUrl;

    if (pathname === '/') {
        return NextResponse.redirect(new URL(`/pl${search}`, request.url));
    }

    return NextResponse.next();
}

export const config = {
    matcher: ['/'],
};