I need use the `sbc-template` template to submit without author information, but the template throws an error when I comment the `\author` command, and when I use `\author{}` a `¹` is printed below the title. Any suggestion on to solve this? 

I am using the [`sbc-template`](https://pt.overleaf.com/latex/templates/sbc-conferences-template/blbxwjwzdngr):

```latex
\usepackage{sbc-template}

```