Crashes on last update

Hi! I’ve recently updated ultimate bootstrap elements for elementor on my site, using HomeID theme and Essential-Real-State.

Inmediatly after update, the site crashes. Disabling the plugin, turns the site back online.

WordPress traces the problem to line 118 of site-settings.php 

"
    foreach ( $default_colors as $index => $color ) {
        if (!in_array($default_keys[$index], $current_color_keys)) {
            $kit->add_repeater_row( 'system_colors', [
                '_id' => $default_keys[$index],
                'title' => $color['title'],
                'color' => strtoupper( $color['value'] ),
            ] );
        }
    }

"

thanks