diff --git a/mobile/lib/screen/home/components/tikum/my_tikum.dart b/mobile/lib/screen/home/components/tikum/my_tikum.dart
index 3d95bfb..92d184f 100644
--- a/mobile/lib/screen/home/components/tikum/my_tikum.dart
+++ b/mobile/lib/screen/home/components/tikum/my_tikum.dart
@@ -24,6 +24,7 @@ class _MyTikumState extends State<MyTikum> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+      backgroundColor: Colors.white,
       body: FutureBuilder<SecureProfile>(
         future: futureProfile,
         builder: (context, snapshot) {
diff --git a/mobile/lib/screen/home/components/tikum/mytikum_card.dart b/mobile/lib/screen/home/components/tikum/mytikum_card.dart
index 43aac67..9aef774 100644
--- a/mobile/lib/screen/home/components/tikum/mytikum_card.dart
+++ b/mobile/lib/screen/home/components/tikum/mytikum_card.dart
@@ -152,7 +152,8 @@ class MyTikumCard extends StatelessWidget {
                   )
                 ],
               ),
-            if (tikum.linkGroup != null)
+            if (tikum.linkGroup != null &&
+                Uri.tryParse(tikum.linkGroup!)!.isAbsolute)
               ElevatedButton(
                   style: ButtonStyle(
                       backgroundColor: MaterialStateProperty.all(Colors.black)),
diff --git a/mobile/lib/screen/home/components/tikum/tikum_card.dart b/mobile/lib/screen/home/components/tikum/tikum_card.dart
index 659236c..7ed728c 100644
--- a/mobile/lib/screen/home/components/tikum/tikum_card.dart
+++ b/mobile/lib/screen/home/components/tikum/tikum_card.dart
@@ -101,7 +101,8 @@ class TikumCard extends StatelessWidget {
                   )
                 ],
               ),
-            if (tikum.linkGroup != null)
+            if (tikum.linkGroup != null &&
+                Uri.tryParse(tikum.linkGroup!)!.isAbsolute)
               ElevatedButton(
                   style: ButtonStyle(
                       backgroundColor: MaterialStateProperty.all(Colors.black)),