diff --git a/src/NodaWikidataFetcher.php b/src/NodaWikidataFetcher.php
index 7bdec52..98d9bc7 100644
--- a/src/NodaWikidataFetcher.php
+++ b/src/NodaWikidataFetcher.php
@@ -343,30 +343,34 @@ final class NodaWikidataFetcher {
             $list = $doc->getElementsByTagName("style");
             while ($list->length > 0) {
                 $p = $list->item(0);
+                if ($p === null || $p->parentNode === null) break;
                 $p->parentNode->removeChild($p);
             }
 
             $list = $doc->getElementsByTagName("table");
             while ($list->length > 0) {
                 $p = $list->item(0);
+                if ($p === null || $p->parentNode === null) break;
                 $p->parentNode->removeChild($p);
             }
 
             $list = $doc->getElementsByTagName("div");
             while ($list->length > 1) {
                 $p = $list->item(1);
+                if ($p === null || $p->parentNode === null) break;
                 $p->parentNode->removeChild($p);
             }
 
             $list = $doc->getElementsByTagName("ol");
             while ($list->length > 0) {
                 $p = $list->item(0);
+                if ($p === null || $p->parentNode === null) break;
                 $p->parentNode->removeChild($p);
             }
 
             $firstP = $doc->getElementsByTagName("p")->item(0);
             if (strpos($doc->saveHTML($firstP), 'geohack') !== false) {
-                $firstP->parentNode->removeChild($firstP);
+                if ($firstP !== null && $firstP->parentNode !== null) $firstP->parentNode->removeChild($firstP);
             }
 
             /*