kmx.io/kmxgit

diff --git a/lib/kmxgit/organisation_manager/organisation.ex b/lib/kmxgit/organisation_manager/organisation.ex
index f9065c2..90f30a1 100644
--- a/lib/kmxgit/organisation_manager/organisation.ex
+++ b/lib/kmxgit/organisation_manager/organisation.ex
@@ -29,18 +29,26 @@ defmodule Kmxgit.OrganisationManager.Organisation do
   end
 
   def owner?(org, user) do
-    org.users
-    |> Enum.find(fn u ->
-      u.id == user.id
-    end)
+    if user do
+      org.users
+      |> Enum.find(fn u ->
+        u.id == user.id
+      end)
+    end
   end
 
   def owned_repositories(org) do
-    org.owned_repositories
-    |> Enum.sort_by(&Repository.full_slug/1)
+    if org do
+      org.owned_repositories
+      |> Enum.sort_by(&Repository.full_slug/1)
+    end
   end
 
   def disk_usage(org) do
-    GitManager.dir_disk_usage(org.slug.slug)
+    if org do
+      GitManager.dir_disk_usage(org.slug.slug)
+    else
+      0
+    end
   end
 end
diff --git a/lib/kmxgit/repository_manager.ex b/lib/kmxgit/repository_manager.ex
index eaef52e..c60f8b0 100644
--- a/lib/kmxgit/repository_manager.ex
+++ b/lib/kmxgit/repository_manager.ex
@@ -82,13 +82,15 @@ defmodule Kmxgit.RepositoryManager do
     Repo.one from repo in Repository, select: count()
   end
 
-  def list_contributor_repositories(user) do
-    list_repositories()
+  def list_contributor_repositories(user, params = %IndexParams{} \\ %IndexParams{per: 1000000}) do
+    pagination = list_repositories(params)
+    result = pagination.result
     |> Enum.filter(fn repo ->
       (!repo.user || repo.user.id != user.id) &&
       (Repository.members(repo)
        |> Enum.find(fn u -> u.id == user.id end))
     end)
+    result
   end
 
   def change_repository() do