Openitem/Browsefield no longer works

[Tibiacrystalbank]

So between today and yesterday all openitems/browsefield commands have stopped working for my script. I have tried everything but I just get errors that I've never gotten before..
error in Action script blahblah:
["browsefield($posx,$posy,$posz)"]:Action: 2:6 attempt to call global 'browsefield' (a number value)
I've changed nothing in this script and it just randomly stopped working after todays update. On top of that, I have tried previous versions of my own script that has had this working, and even they are failing to open/browse now.
Yesterdays update made all my openitem scripts stop working too but it looks as though they are working now.
Is anyone else having these issues and if its just me, does anyone understand what the hell happened?