diff --git a/.gitignore b/.gitignore
index 3ed356b..26e2888 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,5 @@ out/
 .vscode/
 .floo
 .flooignore
+
+/mysql/*
diff --git a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
index 888e651..3783e8a 100644
--- a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
+++ b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
@@ -5,6 +5,7 @@ import mops.gruppen2.config.Gruppen2Config;
 import mops.gruppen2.domain.Group;
 import mops.gruppen2.domain.Role;
 import mops.gruppen2.domain.User;
+import mops.gruppen2.domain.Visibility;
 import mops.gruppen2.domain.exception.EventException;
 import mops.gruppen2.domain.exception.GroupNotFoundException;
 import mops.gruppen2.domain.exception.WrongFileException;
@@ -178,6 +179,18 @@ public class Gruppen2Controller {
         User user = new User(account.getName(), account.getGivenname(), account.getFamilyname(), account.getEmail());
         Long parentId = group.getParent();
         Group parent = new Group();
+        if (!group.getMembers().contains(user)){
+            if (group.getVisibility() == Visibility.PRIVATE){
+                return "privateGroupNoMember";
+            }
+            if (group != null) {
+                model.addAttribute("group", group);
+                model.addAttribute("parentId", parentId);
+                model.addAttribute("parent", parent);
+                return "detailsNoMember";
+            }
+            return "detailsNoMember";
+        }
         if (parentId != null) {
             parent = userService.getGroupById(parentId);
         }
@@ -256,14 +269,19 @@ public class Gruppen2Controller {
     public String editMembers(Model model, KeycloakAuthenticationToken token, @PathVariable("id") Long groupId) throws EventException {
         Account account = keyCloakService.createAccountFromPrincipal(token);
         Group group = userService.getGroupById(groupId);
-        if (group.getRoles().get(account.getName()) == Role.ADMIN) {
-            model.addAttribute("account", account);
-            model.addAttribute("members", group.getMembers());
-            model.addAttribute("group", group);
-            model.addAttribute("admin", Role.ADMIN);
-            return "editMembers";
-        } else {
-            return "redirect:/details/";
+        User user = new User(account.getName(),"", "", "");
+        if (group.getMembers().contains(user)) {
+            if (group.getRoles().get(account.getName()) == Role.ADMIN) {
+                model.addAttribute("account", account);
+                model.addAttribute("members", group.getMembers());
+                model.addAttribute("group", group);
+                model.addAttribute("admin", Role.ADMIN);
+                return "editMembers";
+            } else {
+                return "redirect:/details/";
+            }
+        }else {
+            return "privateGroupNoMember";
         }
     }
 
diff --git a/src/main/resources/templates/detailsNoMember.html b/src/main/resources/templates/detailsNoMember.html
index be65b7f..2ce3528 100644
--- a/src/main/resources/templates/detailsNoMember.html
+++ b/src/main/resources/templates/detailsNoMember.html
@@ -62,6 +62,19 @@
                     </div>
                 </div>
             </div>
+            <div class="col-3" style="white-space: nowrap">
+                <div style="display: inline-block; margin: 0">
+                    <h2>Mitglieder</h2>
+                    <div>
+                        <h4>
+                            <a th:text="${group.getMembers().size()}"></a>
+                            <a>von maximal</a>
+                            <a th:text="${group.getUserMaximum()}"></a>
+                            <a>Benutzern.</a>
+                        </h4>
+                    </div>
+                </div>
+            </div>
         </div>
     </div>
 </main>
diff --git a/src/main/resources/templates/privateGroupNoMember.html b/src/main/resources/templates/privateGroupNoMember.html
new file mode 100644
index 0000000..28d48cb
--- /dev/null
+++ b/src/main/resources/templates/privateGroupNoMember.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="utf-8">
+    <meta content="width=device-width, initial-scale=1, shrink-to-fit=no" name="viewport">
+    <link crossorigin="anonymous" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
+          integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" rel="stylesheet">
+    <meta charset="UTF-8">
+    <title>Seite nicht gefunden</title>
+</head>
+<body>
+<div class="mx-auto" style="vertical-align: border-radius: 5px; center; horiz-align: center; top: 50%; left: 50%;">
+    <div class="jumbotron" style="background: aliceblue">
+        <div class="container">
+            <h1 class="display-3">Kein Zugriff auf die Gruppe</h1>
+            <p class="lead">Sorry, du hast keine Berechtigung auf diese Funktionen der Gruppe zuzugreifen</p><br>
+        </div>
+    </div>
+    <div class="container">
+        <p><a class="btn btn-primary btn-lg" href="#" onclick="window.history.back(-1);return false;" role="button">Zurück</a>
+        </p>
+    </div>
+</div>
+</body>
+</html>
\ No newline at end of file