Added a null and length check for pages before trying to modify their elements.

ignite-template.js

@@ -2735,7 +2735,9 @@ class pagination extends IgniteTemplate {
         }
 
         //Show the elements in the current page
-        this.pages[this.currentPage].forEach(item => item.style.removeProperty("display"));
+        if (this.pages && this.pages.length > 0) {
+            this.pages[this.currentPage].forEach(item => item.style.removeProperty("display"));
+        }
     }
 
     construct(parent, sibling) {