Why did you define a localplr? A remote event should send the local player anyway use "plr" instead. A server script also cannot use LocalPlayer or GetMouse() as you need to use these on a localscript.
https://wiki.roblox.com/index.php?title=API:Class/Player/GetMouse
https://wiki.roblox.com/index.php?title=API:Class/Players/LocalPlayer
If you want to fix this you will need to send the mouse information before you fire the event on the localscript so that the server script can use the mouse information.
So you'll want to remove the lines
local localplr = plr.Localplayer
local mouse = localplr:GetMouse()
and then you'll want to put in your localscript
local mouse = game.Players.LocalPlayer:GetMouse()
local mousetarget = mouse.Target
and then when you fire the remote event you will want to put
script.Parent.RespawnPlr:FireServer(plr,mouse,mousetarget)
as well as in the server script.
script.Parent.OnServerEvent:Connect(function(plr,mouse,mousetarget)
and then you can use the mouse.
2 comments
What’s a normal script?
serverscript ... sorry