Ok, my case was a copy and paste. Let me explain it just in case someone has a similar issue.
I had this:
IMPLEMENT_MODULE(FBADashboardExamplesModule, BADashboardExamplesModule)
It should have been:
IMPLEMENT_MODULE(FBADashboardExamplesModule, BADashboardExamples)
It compiled, I could launch the editor, packaged a dedicated server and everything, but it crashed when I launched the Client Game…
You have to be sure that the second parameter of “IMPLEMENT_MODULE” is the actual name of the Module.