Error Controller Not Found In Back-Office - Custom Controller

[zelakioui]

I developped new module in prestashop 1.6 in my local server, everything was nice.But when i installed it into my hosting server i get controller not found error when i click into module tab.

 

I can enter to configure the module via prestashop configurer link, i get the configuration page and it works nice.

 

I thought it comes from capitals letters, i check if all files names are identicals but i found everything are in good format.

 

Really, a strong problem this one, i must to deliver the product today to the client i don't know what to do.

 

Please, i need your help, everything can help, an idea , a link to tutorial, ....