diff --git a/api/api.php b/api/api.php
index 916aa96..8591c14 100755
--- a/api/api.php
+++ b/api/api.php
@@ -16,6 +16,7 @@ class gbAPI {
     private $config;
     private $internal;
     private $response;
+    private $lastError;
 
     private function b64url_encode($data) {
         return rtrim(strtr(base64_encode($data), "+/", "-_"), "=");
@@ -40,6 +41,8 @@ class gbAPI {
                     "error_text" => "Authentication failed."
                 ];
 
+                $this->lastError = $data;
+
                 $this->answer($status, $data, true);
             }
         }
@@ -52,17 +55,25 @@ class gbAPI {
             try {
                 $input = json_decode(file_get_contents("php://input"), true);
             } catch (JsonException $error) {
-                $this->answer(400, [
+                $error_payload = [
                     "error" => "invalid_body",
                     "error_text" => "Can not read request body: " . $error
-                ]);
+                ];
+
+                $this->lastError = $error_payload;
+
+                $this->answer(400, $error_payload, true);
             }
             return $input;
         }else{
-            $this->answer(400, [
+            $error_payload = [
                 "error" => "false_request_method",
                 "error_text" => "Only POST allowed"
-            ], true);
+            ];
+
+            $this->lastError = $error_payload;
+
+            $this->answer(400, $error_payload, true);
         }
     }
 
@@ -191,6 +202,14 @@ class gbAPI {
         }
     }
 
+    function returnLastError() {
+        if (isset($this->lastError)) {
+            return $this->lastError;
+        }else{
+            return NULL;
+        }
+    }
+
     function getAnswer() {
         if (!isset($this->response)) {
             $error = [
@@ -199,6 +218,8 @@ class gbAPI {
                 "error_text" => "API Returned nothing."
             ];
 
+            $this->lastError = $error;
+
             return $error;
         }
 
@@ -218,17 +239,25 @@ class gbAPI {
             $db_path = APP_PATH . $db_name;
 
             if (!is_file($db_path)) {
-                $api->answer(500, [
+                $error_payload = [
                     "error" => "database_not_found",
                     "error_text" => "The Database was not found."
-                ], true);
+                ];
+
+                $this->lastError = $error_payload;
+
+                $api->answer(500, $error_payload, true);
             }
 
             if (!is_writeable($db_path)) {
-                $this->answer(500, [
+                $error_payload = [
                     "error" => "database_not_writeable",
                     "error_text" => "The Database is not writeable."
-                ]);
+                ];
+
+                $this->lastError = $error_payload;
+
+                $this->answer(500, $error_payload, true);
                 return;
             }
 
@@ -250,11 +279,14 @@ class gbAPI {
         $command = "SELECT name, value FROM settings WHERE name = :name";
 
         $value = $this->dbCommand($command, true, true, [":name" => $key]);
-
+        
         if (isset($value[0]["value"])) {
             return $value[0]["value"];
         }else{
-            return;
+            $this->answer(500, [
+                "error" => "query_returned_nothing",
+                "error_text" => "The SQL Query Returned nothing usable. Check Database Permissions."
+            ]);
         }
     }
 }
diff --git a/api/auth/isauth.php b/api/auth/isauth.php
index 63b9226..bffff1f 100755
--- a/api/auth/isauth.php
+++ b/api/auth/isauth.php
@@ -9,7 +9,20 @@ if (!isset($internal)) {
 require_once API_DIR . "api.php";
 $api = new gbAPI(true, $internal);
 
-$api->answer(200, [
-    "login" => true,
-    "username" => $api->username
-]);
\ No newline at end of file
+$auth = $api->checkAuth();
+
+$lastError = $api->returnLastError();
+
+if ($lastError == NULL) {
+    if ($auth) {
+        $api->answer(200, [
+            "login" => true,
+            "username" => $api->username
+        ]);
+    }else{
+        $api->answer(401, [
+            "login" => false,
+            "username" => ""
+        ]);
+    }
+}
\ No newline at end of file
diff --git a/api/template/get.php b/api/template/get.php
index 82c6228..f823198 100755
--- a/api/template/get.php
+++ b/api/template/get.php
@@ -10,7 +10,8 @@ $api = new gbAPI(false, $internal);
 
 // Get Template
 $template = $api->getSetting("template");
-
-$api->answer(200, [
-    "template_name" => $template
-]);
\ No newline at end of file
+if ($template !== NULL) {
+    $api->answer(200, [
+        "template_name" => $template
+    ]);
+}
\ No newline at end of file
diff --git a/database.db b/database.db
index c98c864..8a7f379 100644
Binary files a/database.db and b/database.db differ
diff --git a/public/admin/index.php b/public/admin/index.php
index fbe2964..7ad60fd 100755
--- a/public/admin/index.php
+++ b/public/admin/index.php
@@ -16,7 +16,10 @@ $htmlloader = new HTMLLoader();
 $call = new APICall("auth/isauth.php");
 $response = $call->response;
 
-if (!isset($response["data"]["login"])) {
+if (!$response["data"]["login"]) {
     $htmlloader->setPage("login");
-    $htmlloader->show();
+    $htmlloader->show([], true);
+}else{
+    $htmlloader->setPage("admin_home");
+    $htmlloader->show([], true);
 }
\ No newline at end of file
diff --git a/public/html_loader.php b/public/html_loader.php
index fa475a1..8e1911c 100755
--- a/public/html_loader.php
+++ b/public/html_loader.php
@@ -4,7 +4,7 @@ class HTMLLoader {
     private $page;
 
     private $templates;
-    private $tempalte_conf;
+    private $template_conf;
 
     function __construct() {
         // Check if Paths variables exists
@@ -13,6 +13,7 @@ class HTMLLoader {
         }
 
         $this->templates = json_decode(file_get_contents(TEMPLATE_CONF), true);
+        $this->getTemplate();
     }
     
     function setTemplate($template) {
@@ -26,6 +27,7 @@ class HTMLLoader {
         }
 
         $this->template = $template;
+        $this->template_conf = file_get_contents(TEMPLATE_PATH . $this->templates[$template]["dir_name"] . "/template.json");
     }
 
     function getTemplate() {
@@ -38,19 +40,26 @@ class HTMLLoader {
             $this->showError("Template API Returned an error: " . $response["error_text"]);
         }
 
-        $this->template = $response["data"]["template_name"];
+        $template = $response["data"]["template_name"];
+
+        $this->template_conf = json_decode(file_get_contents(TEMPLATE_PATH . $this->templates[$template]["dir_name"] . "/template.json"), true);
+        $this->template = $template;
     }
 
     function setPage($page) {
-        $this->page = $page;
+        if (!array_key_exists($page, $this->template_conf)) {
+            $this->showError("Page " . $page . " for template " . $this->template . " not found.");
+        }else{
+            $this->page = $page;
+        }
     }
 
     function showError($error) {
         $template_dir = $this->templates[$this->template]["dir_name"];
-        $template_conf = json_decode(file_get_contents(TEMPLATE_DIR . $template_dir));
+        $template_conf = json_decode(file_get_contents(TEMPLATE_PATH . $template_dir . "/template.json"), true);
 
-        $page = $tempalte_conf["error"];
-        $html = file_get_contents(TEMPLATE_PATH . $page["dir_name"] . "/" . $page["html_file"]);
+        $page = $template_conf["error"];
+        $html = file_get_contents(TEMPLATE_PATH . $template_dir . "/" . $page["dir_name"] . "/" . $page["html_file"]);
         
         $css = "";
 
@@ -79,12 +88,8 @@ class HTMLLoader {
         }
         
         $template = $this->template;
-
+        $tempalte_conf = $this->template_conf;
         $template_dir = $this->templates[$template]["dir_name"];
-        $template_conf = TEMPLATE_PATH . $template_dir . "/template.json";
-
-        $file = file_get_contents($template_conf);
-        $tempalte_conf = json_decode($file, true);
 
         $page = $tempalte_conf[$this->page];
 
diff --git a/public/templates/standard/admin_home/home.html b/public/templates/standard/admin_home/home.html
new file mode 100644
index 0000000..1040dd0
--- /dev/null
+++ b/public/templates/standard/admin_home/home.html
@@ -0,0 +1,150 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0">
+    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">
+    <script type="importmap">
+        {
+            "imports": {
+                "@material/web/": "https://esm.run/@material/web/"
+            }
+        }
+    </script>
+    <script type="module">
+        import '@material/web/all.js';
+        import { styles as typescaleStyles } from '@material/web/typography/md-typescale-styles.js';
+
+        document.adoptedStyleSheets.push(typescaleStyles.styleSheet);
+    </script>
+    <style>
+        :root {
+            --md-sys-color-primary: rgb(58, 58, 255);
+            --active-menu-point-color: rgb(116, 148, 250);
+            --md-sys-color-surface-container: rgb(223, 228, 255);
+        }
+
+        body {
+            margin: 0;
+        }
+
+        .layout {
+            display: flex;
+            height: 100vh;
+            overflow: hidden;
+        }
+
+        .sidebar {
+            flex: 0 0 280px;
+            width: 280px;
+            overflow: hidden;
+            background: var(--md-sys-color-surface-container);
+            border-right: 1px solid var(--md-sys-color-outline-variant);
+            transition: flex-basis .2s ease, width .2s ease;
+            padding: 10px;
+            overflow-y: auto;
+        }
+
+        .sidebar-header {
+            display: flex;
+            align-items: center;
+            gap: 8px;
+            padding: 12px;
+            white-space: nowrap;
+        }
+
+        .sidebar md-list {
+            background: transparent;
+        }
+
+        md-list-item.active {
+            background-color: var(--active-menu-point-color);
+            border-radius: 28px;
+            margin-bottom: 10px;
+        }
+
+        md-list-item {
+            border-radius: 28px;
+            margin-bottom: 10px;
+        }
+
+        .sidebar.collapsed {
+            flex-basis: 58px;
+            width: 58x;
+        }
+
+        .sidebar.collapsed .title,
+        .sidebar.collapsed .label {
+            display: none;
+        }
+
+        .content {
+            flex: 1;
+            padding: 24px;
+            overflow-y: auto;
+        }
+
+        @media (max-width: 720px) {
+            body {
+                overflow-x: hidden;
+            }
+        }
+    </style>
+</head>
+<body>
+    <div class="layout">
+        <aside class="sidebar" id="sidebar">
+            <div class="sidebar-header">
+                <md-icon-button id="toggle" aria-label="Menü ein-/ausklappen">
+                    <md-icon>menu</md-icon>
+                </md-icon-button>
+                <span class="title">Dashboard</span>
+            </div>
+
+            <md-list>
+                <md-list-item type="link" href="/admin/" class="active">
+                    <md-icon slot="start">dashboard</md-icon>
+                    <span class="label">Overview</span>
+                </md-list-item>
+                <md-list-item type="link" href="/admin/settings.php">
+                    <md-icon slot="start">settings</md-icon>
+                    <span class="label">Settings</span>
+                </md-list-item>
+            </md-list>
+        </aside>
+
+        <main class="content">
+            <h1>Dashboard</h1>
+        </main>
+    </div>
+
+    <script type="module">
+        const sidebar = document.getElementById('sidebar');
+        const items = sidebar.querySelectorAll('md-list-item');
+
+        const mq = window.matchMedia('(max-width: 720px)');
+
+        const applyBreakpoint = () => {
+            sidebar.classList.toggle('collapsed', mq.matches);
+        };
+
+        applyBreakpoint();
+        mq.addEventListener('change', applyBreakpoint);
+
+        document.getElementById('toggle').addEventListener('click', () => {
+            sidebar.classList.toggle('collapsed');
+        });
+
+        items.forEach(item => {
+            item.addEventListener('click', () => {
+                items.forEach(i => i.classList.remove('active'));
+                item.classList.add('active');
+            });
+        });
+    </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/public/templates/standard/template.json b/public/templates/standard/template.json
index 9498c72..c53ee0f 100755
--- a/public/templates/standard/template.json
+++ b/public/templates/standard/template.json
@@ -7,22 +7,32 @@
             "error.css"
         ]
     },
+
     "setup":{
         "name":"setup",
         "dir_name":"setup",
         "html_file":"setup.html",
         "css_files":[]
     },
+
     "entrys_frontend":{
         "name":"entrys_frontend",
         "dir_name":"entrys_frontend",
         "html_file":"entrys_frontend.html",
         "css_files":[]
     },
+
     "login":{
         "name":"login",
         "dir_name":"login",
         "html_file":"login.html",
         "css_files":[]
+    },
+
+    "admin_home":{
+        "name":"admin_home",
+        "dir_name":"admin_home",
+        "html_file":"home.html",
+        "css_files":[]
     }
 }
\ No newline at end of file
diff --git a/public/test.php b/public/test.php
index c8c05b2..cabbadf 100755
--- a/public/test.php
+++ b/public/test.php
@@ -19,5 +19,15 @@
 
 //print_r(explode(".", "jakob.stinkt"));
 
-var_dump(extension_loaded("pdo_sqlite"));
-var_dump(extension_loaded("sqlite3"));
\ No newline at end of file
+//var_dump(extension_loaded("pdo_sqlite"));
+//var_dump(extension_loaded("sqlite3"));
+
+class test {
+    private $test;
+
+    function __construct() {
+        var_dump(isset($this->test));
+    }
+}
+
+new test();
\ No newline at end of file