My script to edit a paste in Pastebin is not working and I dont know why? [Solved]

I found this.

Here is my script. It also logs on so you can actually edit.

local http = game:GetService('HttpService')
local edit = --Not shown cuz I dont want you to see it
local login = 'https://pastebin.com/login'
local send = 'Someone read this message!'
local password = --Not shown for obvious reasons.
local username = --Again, not shown.
local tab = {
	['user_name'] = username, --I found the "user_name" part and the "user_password" part using inspect element, so I assumed you had to use it.
	['user_password'] = password
} 

script.Parent.MouseButton1Click:connect(function()
	http:PostAsync(login, http:JSONEncode(tab))
	http:PostAsync(edit, send)
end)

It is a server script in a TextButton, just saying. There is a part above it, and that part works. I have HttpService on, so dont answer that with that explanation.

You have local tab = {username, password} but you are trying to send http:PostAsync(login, http:JSONEncode(table))