diff --git a/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/controler/DatasetController.java b/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/controler/DatasetController.java
index e4ede5c..b24292c 100644
--- a/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/controler/DatasetController.java
+++ b/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/controler/DatasetController.java
@@ -11,7 +11,6 @@ import org.springframework.data.domain.Pageable;
 import org.springframework.data.web.config.EnableSpringDataWebSupport;
 import org.springframework.data.domain.Sort;
 
-import java.util.List;
 import java.util.UUID;
 
 @RestController
diff --git a/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/Dataset.java b/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/Dataset.java
index 29e9b66..52cd1b4 100644
--- a/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/Dataset.java
+++ b/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/Dataset.java
@@ -41,7 +41,7 @@ public class Dataset {
 
     private String[] categories;
 
-    public Dataset(String title, String abst, String description, String author, String[] categories, Type type) {
+    public Dataset(String title, String abst, String description, String author, URL url, String[] categories, Type type) {
 
         this.raiting = 0;
         this.votes = 0;
diff --git a/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/LoadDummyDatabase.java b/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/LoadDummyDatabase.java
index 8b1ff2d..ba8f166 100644
--- a/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/LoadDummyDatabase.java
+++ b/src/main/java/de/uni_passau/fim/PADAS/group3/DataDash/model/LoadDummyDatabase.java
@@ -1,5 +1,6 @@
 package de.uni_passau.fim.PADAS.group3.DataDash.model;
 
+import java.net.URL;
 import java.sql.Date;
 import java.util.List;
 
@@ -22,7 +23,7 @@ public class LoadDummyDatabase {
 
         return args -> {
         for (int i = 0; i < 100; i++) {
-            Dataset dataset = new Dataset("Title" + i, "Abst" + i, "Description" + i, "Author" + i, new Date(0), new String[]{"Category" + i}, Type.API);
+            Dataset dataset = new Dataset("Title" + i, "Abst" + i, "Description" + i, "Author" + i,null, new String[]{"Category" + i}, Type.API);
             repository.save(dataset);
             log.info("Preloading" + repository.save(dataset));
         }