[HELP] Error Upgrade Helix Ultimate

[RFSIOS]

Good morning everyone.

Has anyone ever encountered problems while upgrading Helix Ultimate?

Whenever I try, I face the same failure. Even though I import the settings and restore them when the upgrade is complete, I get the page failure message.

Undefined variable $link_color: templates/shaper_helixultimate/scss/theme.scss on line 477, at column 7 Call Stack: #0 import templates/shaper_helixultimate/scss/theme.scss templates/shaper_helixultimate/scss/master.scss on line 8 #1 import templates/shaper_helixultimate/scss/master.scss (unknown file) on line 1​

theme.scss file Line 477 col 7 (red)

.k2LatestCommentsBlock {
ul {
li {
line-height: inherit;
font-size: inherit;
.image-box {
.k2Avatars {
background: none!important;
}
}

master.scss file

/**
* @package Helix Ultimate Framework
* @author JoomShaper https://www.joomshaper.com
* @copyright Copyright (c) 2010 - 2018 JoomShaper
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 or Later
*/
@import 'variables';
@import 'mixins';
@import 'legacy';
@import 'animation';

I did a procedure that they had indicated in a forum and it seemed to have solved it, but I noticed that the structure of the site was completely changed.

Extensions > Theme > Styles

Select Template Helix > Template Options > and in advanced settings > SCSS > Disable SCSS to CSS conversion

I would like to know if anyone has had this problem and has a solution?

I use Joomla 3.10.10 + Illusion Template.

** Sorry for the other post, I thought I had solved it with the tip, but when analyzing it calmly, I saw that other structural problems appeared when performing the procedure.