Script does not work with environmental variables

export async function onRequestPost(context) {
  try {
    return await handleRequest(context);
  } catch (e) {
    console.error(e);
    return new Response("Error sending message", { status: 500 });
  }
}
async function handleRequest({ request }) {
  try {
    const ip = request.headers.get("CF-Connecting-IP");
    const formData = await request.formData();
   ...
    const token = formData.get("cf-turnstile-response");
    const tokenValidated = await validateToken(ip, token);
    if (!tokenValidated) {
      return new Response("Token validation failed", { status: 403 });
    }

    await forwardMessage(
      ...
    );

    return new Response("OK", { status: 200 });
  } catch (error) {
    console.error("Error handling request:", error);
    return new Response("Error handling request", { status: 500 });
  }
}

async function validateToken(ip, token) {
  const formData = new FormData();
  formData.append("secret", env.TURNSTILE_SECRET);
  formData.append("response", token);
  formData.append("remoteip", ip);

  const url = "https://challenges.cloudflare.com/turnstile/v0/siteverify";

  const result = await fetch(url, {
    body: formData,
    method: "POST",
  });

  const outcome = await result.json();
  console.log(outcome);
  return outcome.success;
}

async function forwardMessage(
  ...
) {
  console.log("Form Data:", {
    ...
  });
  try {
    const sendGridApiKey = env.SENDGRID_CONTACT_API;
    const sendGridEndpoint = "https://api.sendgrid.com/v3/mail/send";

    ....