No config form for rules action

I installed rules_example module in my server. it works. It also works in localhost.
But When I write a new module like rules_example which creates a new rules action, it only works on localhost!

I edited the rules_example module and created a new module. there is no problem in localhost
But on my server, when I try to add a new action in the UI, the action configuration form (action parameters) is hidden
and when I submit that form, I get this error:

"Missing configuration for parameter account."

I have no problem with other modules in my server!

see that attached image

please help. thanks