Client Prefs have broken?

[Destiny/Zack0Wack0]

It seems something has gone wrong with my game (Possibly a faulty Add-On) and now the prefs just get blanked on exiting the game. I've tried getting someone elses prefs and overwriting, still doesn't work. This keeps getting echoed throughout the console:
Invalid script file /config/client/pref.cs

Please Help.

[Ad Bot]

[MegaScience]

What Add-On's did you recently download?

[Destiny/Zack0Wack0]

Covered Wagon and Hud-Hider

[MegaScience]

Hud-Hider

Suspicious...

[Chrono]

Here's a new hud-hider:
canvas.setcontent(nohudGui);