I have problem with RemoteEvent scripts. Can you help me?

**I don't know my mistake D: Help please. **

FireEvent Code: (Local Script)

local SelfCheckInEvent = game.ReplicatedStorage.SelfCheckInSystem.Events:WaitForChild("EditData")
local SumbitSCI = script.Parent.SelfCheckInDataMenu.Sumbit
local DTBoxS = script.Parent.SelfCheckInDataMenu.DepartureTimeBox.Text
local DBoxS = script.Parent.SelfCheckInDataMenu.DestinationBox.Text
local FBoxS = script.Parent.SelfCheckInDataMenu.FlightBox.Text
local GBoxS = script.Parent.SelfCheckInDataMenu.GateBox.Text
local PBoxS = script.Parent.SelfCheckInDataMenu.PlaneBox.Text

SumbitSCI.MouseButton1Click:connect(function()
    SelfCheckInEvent:FireServer(DTBoxS,DBoxS,FBoxS,GBoxS,PBoxS)
end)

OnServerEvent Code:

local EventSelfCheckIn = game.ReplicatedStorage.SelfCheckInSystem.Events.EditData

local Data = game.ReplicatedStorage.SelfCheckInSystem.Data
local DepartureTime = Data.DepartureTime
local Destination = Data.Destination
local Flight = Data.Flight
local Gate = Data.Gate
local Plane = Data.Plane


EventSelfCheckIn.OnServerEvent:connect(function(Player,DTBoxS,DBoxS,FBoxS,GBoxS,PBoxS)
    DepartureTime.Value = DTBoxS.Text
    Destination.Value = DBoxS.Text
    Flight.Value = FBoxS.Text
    Gate.Value = GBoxS.Text
    Plane.Value = PBoxS.Text
end)

I'm not good scripter D: