[Plugin: Members Only] Array massage

Since i activated members only i have this “error” on the top of my frontpage

Array ( [members_only] => 1 [redirect_to] => specifypage [login_redirect_to] => frontpage [redirect_url] => [redirect] => [feed_access] => feedkeys [feedkey_reset] => 1 [require_feedkeys] => [one_time_view_ip] => )

i deactivated and uninstall that plugin but the error is still shown.

Can anyone help me how to remove that massage.

Thanks a lot