VSCode extension development unable to use provideInlineCompletionItems

I rollbacked a version of VSCode and it works now. this is the debug code I used.

// The module 'vscode' contains the VS Code extensibility API
// Import the module and reference it with the alias vscode in your code below
const vscode = require('vscode');

// This method is called when your extension is activated
// Your extension is activated the very first time the command is executed

/**
 * @param {vscode.ExtensionContext} context
 */
function activate(context) {

    // Use the console to output diagnostic information (console.log) and errors (console.error)
    // This line of code will only be executed once when your extension is activated
    console.log('Congratulations, your extension "seven" is now active!');

    // The command has been defined in the package.json file
    // Now provide the implementation of the command with  registerCommand
    // The commandId parameter must match the command field in package.json
    let disposable = vscode.commands.registerCommand('seven.helloWorld', function () {
        // The code you place here will be executed every time your command is executed

        // Display a message box to the user
        vscode.window.showInformationMessage('Hello World from seven!');
    });

    const provider = {
        provideInlineCompletionItems: async (document, position, context, token) => {
            const line = document.lineAt(position.line);
            console.log("420")
            if (line.text.startsWith('if')) {
                console.log("421")
                let range = line.range;
                if (line.text.indexOf(";") !== -1) {
                    console.log("423")
                    range = new vscode.Range(range.start, range.end.with(undefined, line.text.indexOf(";") + 1));
                }
                console.log("424")

                return [{ text: 'if (hello) {\n};', insertText: "if (hello)", range }];
            }
        }
    };

    vscode.languages.registerInlineCompletionItemProvider({ pattern: '**' }, provider);

    context.subscriptions.push(disposable);

    
}

// This method is called when your extension is deactivated
function deactivate() {}

module.exports = {
    activate,
    deactivate
}