I recently moved a project from one server to another. the server is running on nginx.

I noticed some issues like that I cant upload any picture to ckeditor using imce module (I can upload images via filefield) then while trying to fix this issue I encountered this problem that I cant enable or disable any module.

It's like when I check/uncheck a module and hit submit on module's list page, it refreshes but nothing change afterwards.

the other thing is Im running another website on this server with the same version of drupal and it just works fine, I wonder what could be wrong? is it a server issue or a drupal problem?

I'd really appreciate any help and tips.