local ProximityPromptService = game:GetService("ProximityPromptService")
local ServerScriptService = game:GetService("ServerScriptService")

local ObjectActions = require(ServerScriptService.ObjectActions)

local function onPromptHoldBegan(promptObject, player)
	ObjectActions.promptHoldBeganActions(promptObject, player)
end

local function onPromptTriggered(promptObject, player)
	ObjectActions.promptTriggeredActions(promptObject, player)
end

local function onPromptHoldEnded(promptObject, player)
	ObjectActions.PromptHoldEndedActions(promptObject, player)
end

ProximityPromptService.PromptTriggered:Connect(onPromptTriggered)
ProximityPromptService.PromptTriggered:Connect(onPromptHoldBegan)
ProximityPromptService.PromptTriggered:Connect(onPromptHoldEnded)

All work except for PromptTriggered, which is the most important one. fun!

Here is the error I'm receiving 

  15:41:55.234  ServerScriptService.ProximityPromptService:11: attempt to call a nil value  -  Server - ProximityPromptService:11
Anonymous