Child theme not working after update

This is my child theme′s stylesheet:
/*
Theme Name: Nasu
Theme URI: https://example.com/Customizr-nasu/
Description: Customizr Child Theme
Author: John Doe
Author URI: https://example.com
Template: customizr
Version: 1.0.0
Tags: light, dark, two-columns, right-sidebar, responsive-layout, accessibility-ready
Text Domain: Nasu
*/

@import url(“../customizr/inc/assets/css”);

@media screen and (min-width: 980px){ (max-width: 1199px) {
.navbar.notresp {
top: 10px;
}
.navbar .nav > li > a {
font-size: 10px;
}
@media screen and (max-width: 1199px) {
.navbar .nav > li > a {
font-size: 10px;
}
.navbar.notresp {
top: 10px;
}
}
}

Hi,

Perhaps it’s related to this issue.
https://www.ads-software.com/support/topic/website-blank-after-customizr-update?replies=36

Have you tried deleting your theme and re-installing it manually?

Thanks!