While "npm run dev" - all is ok
When "npm run build" - i've this error

Logic:
1. send_lead.js file (@/lib/send_lead.js)

"use server";

export default async function SendLead({
    msg = "someText",
}) {
    const tgbot = process.env.LEAD_BOT_API;
    const idTo = process.env.CHANAL_ID;
    try {
        const options = {
            method: "POST",
            headers: {
                accept: "application/json",
                "content-type": "application/json",
            },
            body: JSON.stringify({
                text: escapeReservedCharacters(msg),
                parse_mode: "MarkdownV2",
                disable_web_page_preview: false,
                disable_notification: false,
                reply_to_message_id: null,
            }),
        };
        await fetch(
            `https://api.telegram.org/bot${tgbot}/sendMessage?chat_id=${idTo}`,
            options
        );
        return true;
    } catch (err) {
       console.log(err);
        return false;
    }
}

2. Client side btn button.js:

"use client";
import SendLead from "@/lib/send_lead";

export default function SomeClientBtn(){
  
  return(
    <button onClick={goSendLead}>
        <span>Try it</span>
    </button>
  )

  async function goSendLead() {
     
      const reqStatus = await SendLead({
          msg: "hello",
       });
      alert(reqStatus);
  }
}