Board Thread:Support Requests - Getting Technical/@comment-25554800-20151128160200

I tried to copy the time countown template from wikia templates, but it seems I did something wrong as it gives me the following error whenever I try to use it on the wiki I'm editing.

Expression error: Unrecognised punctuation character "[".

I'm still a beginner when it comes to editing templates and I don't know how to make it work. Could someone please explain what I did wrong and how to fix it? Thank you very much. 