Can't Generate PDF File Laravel 9 (Using PHPWord)

The issue is when I tried to generate pdf then it's stuck/freeze. This issue arise after I upgrade laravel from laravel 5 to laravel 9

This is in my OfferController

    public function downloadOfferLetterGenerate(ProjectUnitScheme $project_unit_scheme)
    {
        $scheme_folder = $project_unit_scheme->id;
        $status_file = "$scheme_folder/status.json";

        $status = [
            'progress' => 0,
            'status' => 'started',
        ];

        Storage::disk('download')->deleteDirectory($scheme_folder);
        Storage::disk('download')->put($status_file, json_encode($status));

        $query    = $project_unit_scheme->applications()
            ->where('status_id', Status::OFFERED);

        $total = $query->count();
        $chunk = ceil($total * 0.10);

        try {
            $query->chunk($chunk, function ($applications, $page) use ($scheme_folder, $status_file, $chunk, $total){
                foreach ($applications as $index => $application) {
                    $folder_date_offer = $application->date_offer->format('Y-m-d');

                    $filename = "$application->project_running_no - $application->ic $application->name.pdf";

                    $content = app(Template::class)->generateOfferLetter($application);

                    Storage::disk('download')->put("$scheme_folder/$folder_date_offer/$filename", $content);


                    $nth = (($page - 1) * $chunk) + $index + 1;

                    $status = [
                        'status' => 'started',
                        'progress' => floor($nth / $total * 100),
                    ];

                    Storage::disk('download')->put($status_file, json_encode($status));
                }

                $status = [
                    'status' => 'started',
                    'progress' => floor($page * $chunk / $total * 100),
                ];

                Storage::disk('download')->put($status_file, json_encode($status));
            });

            $status = [
                'status' => 'completed',
                'progress' => 100,
                'date_completed' => now()->format('d/m/Y h:i:s a')
            ];

            Storage::disk('download')->put($status_file, json_encode($status));

        } catch (\Throwable $e) {
            $status = [
                'status' => 'error',
                'progress' => 0,
            ];

            Storage::disk('download')->put($status_file, json_encode($status));
        }

        return $status;
    }

This is in the app\Libs\Template\Template.php

    public function generateOfferLetter($application)
    {
        if ($application->project_unit_scheme && $application->project_unit_scheme->template_surat_tawaran) {
            $surat_tawaran = $application->project_unit_scheme->template_surat_tawaran;

            return app(Template::class)->generateFile($surat_tawaran->realPath(), $application, $application->project_unit_scheme);
        }

        $offer_letter = $this->getOfferLetterTemplate($application);

        return app(Template::class)->generateFileFromTemplate($offer_letter, $application);
    }