You said "I duplicated the template and assign a language and menu to each instance, ...
4- I installed yougrids assign a language and menu to each instance
Result: Except the menu, everything worked fine. when i clicked the flags it changes the languages but the menu does not change.
I'm not sure how can I assign a language to each instance. What I did was:
Using the template manager, I selected YouGrid template, I select copy using the options on the top menu. It appears a new template named: "Yougrids - Default (2)".
But I don't know how can I assign a language. I have one menu for english and one for spanish. But Spanish Menu isn't working.
Thanks in advance.