Minecraft Bedrock Scripting API Error world.beforeEvents.chatSend.subscribe

Question

When I load my world or /reload I've got this error

[Scripting][error]-Plugin [MinolyaReborn - 1.0.0] - [main.js] ran with error: [TypeError: cannot read property 'subscribe' of undefined    at <anonymous> (events/sendMessageWithTag.js:2)]

This my main.js :

import "./Sticks/healthStick.js";
import "./events/sendMessageWithTag.js";

console.warn("§6[Addon]§r all files loaded");

and this is my sendMessageWithTag.js:

import { world } from '@minecraft/server';
world.beforeEvents.chatSend.subscribe((eventData) => {
    const player = eventData.sender;
    switch (eventData.message) {
        case '!creative':
            eventData.cancel = true;
            player.runCommandAsync('gamemode c');
            break;
        case '!survival':
            eventData.cancel = true;
            player.runCommandAsync('gamemode s');
            break;
        default: break;
    }
});

my manifest use this dependencies:

{
    "module_name": "@minecraft/server",
    "version": "1.9.0"
},
{
    "module_name": "@minecraft/server-gametest",
    "version": "1.0.0-beta"
},
{
    "module_name": "@minecraft/server-ui",
    "version": "1.2.0-beta"
},
{
    "module_name": "@minecraft/server-admin",
    "version": "1.0.0-beta"
}

I would add chat event so I went in his web page the only (except Microsoft page) who use:

world.beforeEvents.chatSend.subscribe

How can I fix it?