My Chat doesn't work and I don't know how to resolve this problem?

First, I'm french so sorry if my English is bad.

So I had gotten two errors:

[1]

Script that implemented this callback has been destroyed while calling async callback - Client - ChatMain:1113 Stack Begin - Studio Script 'Players.Xernas78.PlayerScripts.ChatScript.ChatMain', Line 1113 - Studio - ChatMain:1113 Stack End - Studio [2]

Requested module experienced an error while loading - Client - ChatScript:25 Stack Begin - Studio Script 'Players.Xernas78.PlayerScripts.ChatScript', Line 25 - function DoEverything - Studio - ChatScript:25 Script 'Players.Xernas78.PlayerScripts.ChatScript', Line 143 - Studio - ChatScript:143 Stack End - Studio

There are 3 error lines :

[1]

local initData = EventFolder.GetInitDataRequest:InvokeServer()

[2]

local Chat = require(script:WaitForChild("ChatMain"))

[3]

DoEverything()

Please, I don't understand, when I create a new experience, this is by default.