Need help with that!

a client tried to send an event of type msqonclientmapstart, but it was not greenlit for client invocation, you may need to call registerserverevent from you script ??? what is that ?

you need the server event that handle and recognise the client event

and how can i =do that ?

depends on what you have there, an event type would be :

RegisterServerEvent(“yourevent”)
AddEventHandler(“your event”, function(etc…)
TriggerClientEvent(‘clientevent’,etc…)
end)

This is an example that should fit with what you have there, on clientmapstart it’s gonna be a client that’s calling for an event that’s gonna be in client, but the server has no handler for it so it won’t run.