diff --git a/backend/server/users/serializers.py b/backend/server/users/serializers.py
index f7e4df6..63b5b7d 100644
--- a/backend/server/users/serializers.py
+++ b/backend/server/users/serializers.py
@@ -136,7 +136,7 @@ class UserDetailsSerializer(serializers.ModelSerializer):
             return username
 
         from allauth.account.adapter import get_adapter
-        username = get_adapter().clean_username(username)
+        username = get_adapter().clean_username(username.lower())  # Convert username to lowercase
         return username
 
     class Meta:
diff --git a/frontend/src/lib/components/Toast.svelte b/frontend/src/lib/components/Toast.svelte
index 5bf90c9..10b563c 100644
--- a/frontend/src/lib/components/Toast.svelte
+++ b/frontend/src/lib/components/Toast.svelte
@@ -9,7 +9,7 @@
 	});
 </script>
 
-<div class="toast toast-top toast-end z-50 min-w-20">
+<div class="toast toast-top mt-14 toast-end z-50 min-w-20">
 	{#each toastList as { type, message, id, duration }}
 		{#if type == 'success'}
 			<div class="alert alert-success">