diff --git a/Loader/src/main/java/de/com/baseband/launcher/Loader.java b/Loader/src/main/java/de/com/baseband/launcher/Loader.java
index 465aa5b..74cfd13 100644
--- a/Loader/src/main/java/de/com/baseband/launcher/Loader.java
+++ b/Loader/src/main/java/de/com/baseband/launcher/Loader.java
@@ -394,7 +394,7 @@ public class Loader implements Util {
                 byte[] bytes = new StreamReader(stream).readAllAsBytes();
                 try(FileOutputStream os = new FileOutputStream(filename)) {
                     os.write(bytes);
-                }
+                } catch (IOException ignored) { }
                 stream = new ByteArrayInputStream(bytes);
             }
             ZipInputStream jar = new ZipInputStream(stream);
diff --git a/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java b/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java
index 156b78c..6e07fe6 100644
--- a/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java
+++ b/Loader/src/main/java/de/com/baseband/launcher/classloader/SimpleClassLoader.java
@@ -23,11 +23,14 @@ public class SimpleClassLoader extends ClassLoader {
 
     @Override
     protected URL findResource(String name) {
-        try {
-            return URLWrapper.wrap(name, classes.get(name));
-        } catch (MalformedURLException e) {
-            throw new RuntimeException(e);
+        if(classes.get(name) != null) {
+            try {
+                return URLWrapper.wrap(name, classes.get(name));
+            } catch (MalformedURLException e) {
+                throw new RuntimeException(e);
+            }
         }
+        return null;
     }
 
     @Override