Finally everything is back to normal, thanks to Articina designing blog, which it has the most recent script from this blog.

So I still don't know what happen actually but I narrowed the problem to the drop down menu script.

There is a small bug but hey, I restored to the last usable menu state.

See this screenshot, EXTREAMLY BUGGY! After trying to find the problem, problem gets worse. This S*** stack overflow (known as "buffer" overflow in scripts) happens.
Stupid isn't?