fix

assets/sass/_theme/blocks/links.sass

@@ -4,8 +4,8 @@
         @include grid(2, md)
         align-items: flex-start
     li
-        background-color: var(--block-links-card-background)
-        color: var(--block-links-card-color)
+        background-color: $block-links-card-background
+        color: $block-links-card-color
         display: flex
         flex-direction: column-reverse
         justify-content: flex-end
@@ -33,13 +33,13 @@
                 aspect-ratio: 16/9
                 object-fit: cover
         &:hover
-            background-color: var(--block-links-card-hover-background)
+            background-color: $block-links-card-hover-background
             &, a
-                color: var(--block-links-card-hover-color)
+                color: $block-links-card-hover-color
     @include in-page-without-sidebar
         .top
             display: flex
-            gap: var(--grid-gutter)
+            gap: $grid-gutter)
             .block-title
                 width: columns(4)
             .description