jQuery File Upload - angularjs

I moved a site from one server to another. I'm using this file upload tool: here . Now on the new server, selecting more than one file can not upload the image, ie it is not even loaded in the window. Is any php module missing from the new server?

In the log file, it gives the following error:

PHP Warning: exif_imagetype (): Filename can not be empty in /caminho_filheiro/server/php/UploadHandler.php on line 462

Line Code 462:

if (function_exists('exif_imagetype')) {
    switch(exif_imagetype($file_path)){    // ESTA É A LINHA 462
        case IMAGETYPE_JPEG:
            $extensions = array('jpg', 'jpeg');
            break;
        case IMAGETYPE_PNG:
            $extensions = array('png');
            break;
        case IMAGETYPE_GIF:
            $extensions = array('gif');
            break;
    }
        // Adjust incorrect image file extensions:
        if (!empty($extensions)) {
            $parts = explode('.', $name);
            $extIndex = count($parts) - 1;
            $ext = strtolower(@$parts[$extIndex]);
            if (!in_array($ext, $extensions)) {
                $parts[$extIndex] = $extensions[0];
                $name = implode('.', $parts);
            }
        }

The problem at startup is not in the code, since the other server worked fine.