Thank you for your response.
I solved the problem. It was the divi theme and/or divi builder version incombatibility.
It was strange though, because in the first place it seemed not to be activated (although it was)
When i updated my divi theme + divi builder to latest versions, suddenly your plugin “evaluated” and i got an internal server error because my server run PHP 5.3 and you use “[]” syntax for arrays. (php gt 5.4)
When i changed PHP version, all was good ??
Thank you again!