fixed omniauth

config/initializers/omniauth.rb

@@ -1,7 +1,7 @@
 OmniAuth.config.logger = Rails.logger
 
-
-site = Site.first
+site = Site.first rescue nil
+if !site.nil?
 	client_id = site.google_client_id
 	client_secret = site.google_client_secret
 
@@ -13,3 +13,4 @@ else
 		site.google_oauth_enabled = false
 		site.save
 	end
+end