diff --git a/components/lib/config/PrimeVue.js b/components/lib/config/PrimeVue.js
index b10d0e4e4..6f2b2e0a7 100644
--- a/components/lib/config/PrimeVue.js
+++ b/components/lib/config/PrimeVue.js
@@ -160,7 +160,7 @@ function switchTheme(currentTheme, newTheme, linkElementId, callback) {
             callback();
         }
     });
-    linkElement.parentNode?.insertBefore(cloneLinkElement, linkElement.nextSibling);
+    linkElement.parentNode && linkElement.parentNode.insertBefore(cloneLinkElement, linkElement.nextSibling);
 }
 
 export default {
diff --git a/components/lib/virtualscroller/VirtualScroller.vue b/components/lib/virtualscroller/VirtualScroller.vue
index 89a3d5e85..6bcaf9918 100644
--- a/components/lib/virtualscroller/VirtualScroller.vue
+++ b/components/lib/virtualscroller/VirtualScroller.vue
@@ -231,7 +231,7 @@ export default {
         },
         scrollTo(options) {
             this.lastScrollPos = this.both ? { top: 0, left: 0 } : 0;
-            this.element?.scrollTo(options);
+            this.element && this.element.scrollTo(options);
         },
         scrollToIndex(index, behavior = 'auto') {
             const both = this.isBoth();