fix cla error for pr

app/views/pull_requests/index.json.jbuilder

@@ -11,7 +11,7 @@ json.project_author @project.owner.try(:login)
 json.project_author_name @project.owner.try(:show_real_name)
 json.has_created_pull_requests @project.pull_requests.size > 0
 json.disable_pr_vew @project.pr_view_admin? && !@project.manager?(current_user)
-json.pr_need @project.owner&.cla.try(:pr_need)
+json.pr_need @project.owner.class == User ? false : @project.owner&.cla.try(:pr_need)
 
 json.issues do
   json.array! @issues.to_a do |issue|