So I created a "Cast indicator" template on my wiki (Zilla Fanon Wiki), but every time I use the template, there's this error which always show up:
Expression error: Unrecognized punctuation character "[".
As a result, I could not use the template on public pages. I've could not find what's causing the errors on the template because on the main template page it's 100% fine.
Screenshot of the error: