Thank you Kanersps for you quick answer.
Unfortunately, following your directions, the mod doesn't work (crash while connecting to my LAN server).
Maybe it's non compatible with Fivereborn.
In the Plugins folder I have EnhancedReborn (trainer) and OpenInteriors (mod) and they both work.
Thanks again for this great piece of software.
Edit: I also tried OnlineEvents.asi but I get the same result. In single player works but with Fivereborn (.asi in Plugins folder and .ini in GTA V folder) nothing happens. The mod isn't loaded at all. Another hint would be much appreciated. Thanks in advance