Disallowed operation called within global scope...

import { verifyDiscordRequest } from './verifyDiscordRequest';
import Client from "mylib"

addEventListener('fetch', (event) => {
    event.respondWith(handleRequest(event.request));
});

async function handleRequest(request: Request<unknown>, CfProperties<unknown> ) {

    if (commandName === 'ping') {
    } else if (commandName === 'stats') {
        return await stats(interaction).then((data) => {
            return new Response(JSON.stringify(data.base_info), {
                headers: { 'Content-Type': 'application/json' },
            });
        });
    }

    function stats(interaction: any) {
        return new Client({
            loginOptions: {
            },
        }).getStats(interaction.data?.options[0]?.value);
    }
}