Whenever i use this script in game on the dev console it doesn't work?

So whenever i use this script on the dev console in game for my one piece game game.ReplicatedStorage.FolderChange:FireClient("llBreezyll", "DevilFruit", "Flame") it says "Unable to cast value into object" btw llBreezyll is my main account.

You can't pass string arguments in :FireClient().

But :FireServer() can.

For :FireClient() you can instead of string text, pass objects such as a player's character or you can pass a nil variable which works if you're only trying to fire a remote event.