Error when uploading large file using media_handle_upload()

Hi guys
My website has different layout to upload their file, and i’m using media_handle_upload() to handle that. The large file upload via media page is still good. I dont know what happend, can someone help me solve this. Here is my code to handle the uploaded file.

if (empty($_FILES) || $_FILES['file']['error']) {
            verbose(0, "Failed to move uploaded file.");
        }
        $filePath = wp_upload_dir()['path'];
        $fileName = isset($_REQUEST["name"]) ? $_REQUEST["name"] : $_FILES["file"]["name"];
        $filePath = $filePath . '/' . $fileName;
        $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
        $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 0;
        $out = @fopen("{$filePath}.part", $chunk == 0 ? "wb" : "ab");
        if ($out) {
            $in = @fopen($_FILES['file']['tmp_name'], "rb");
            if ($in) {
                while ($buff = fread($in, 4096)) {
                    fwrite($out, $buff);
                }
            } else {
                verbose(0, "Failed to open input stream");
            }
            @fclose($in);
            @fclose($out);
        } else {
            verbose(0, "Failed to open output stream");
        }

        if (!$chunks || $chunk == $chunks - 1) {
            rename("{$filePath}.part", $filePath);
        }

        $_FILES['file']['name'] = $fileName;
        $_FILES['file']['size'] = filesize($filePath);
        $_FILES['file']['type'] = get_mime_content_type($filePath);

        $post_id = 0;

        $id = media_handle_upload('file', $post_id);