Sass Compiling Error

main.scss
"unexpected }: failed at `@media only screen and (max-width: 768px) {` /is/htdocs/wp1067571_I8VG9SZH2N/www/web_projekte/wp-veranstaltungsnetzwerk/wp-content/themes/futurelab2019/assets/styles/app/_lcp.scss on line 64"