Avoid lua error in helpers.lua: for url, name in pairs(conf["users"][user]) do

helpers.lua

@@ -540,6 +540,7 @@ function get_data_for(view)
 
         -- Add user's accessible URLs using the ACLs.
         -- It is typically used to build the app list.
+        if conf["users"][user] then
             for url, name in pairs(conf["users"][user]) do
 
                 if ngx.var.host == conf["local_portal_domain"] then
@@ -550,6 +551,7 @@ function get_data_for(view)
                 table.insert(data["app"], index_of(sorted_apps, name), { url = url, name = name })
             end
         end
+    end
 
     -- Pass all the translated strings to the view (to use with t_<key>)
     for k, v in pairs(i18n[conf["default_language"]]) do