plugin don't working(solved)

[iandnoti]

I'm copied lua code to server storage, saved it in local plugin and rejoined to project. When I rejoined in output I have 2 errors -
user_Sync.lua.Script:1: Expected identifier when parsing expression, got '<' - Studio
Unable to cast InitialDockState to DockWidgetPluginGuiInfo - edit
how to fix it?
and I'm tried copy and paste again, don't working

[iandnoti]

if you have this problem, just downoland this file and put this in plugins folder