Cannot edit zones

[Kazitox]

I've just finished heavily modding my game, and I've come across a problem with zones wherein I cannot edit what goes into them. The option to do so is completely gone. Screenshot Provided.

This is the error I get in console:

Exception filling tab RimWorld.ITab_Storage: System.TypeInitializationException: An exception was thrown by the type initializer for RSA.Core.FilterSearch_InjectSearchBox ---> System.NullReferenceException: Object reference not set to an instance of an object
  at RSA.Core.Util.Access.GetPropertyGetter[GUIStyle] (System.String propertyName, System.Type ownerType) [0x00000] in <filename unknown>:0
  at RSA.Core.FilterSearch_InjectSearchBox..cctor () [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
Verse.Log:Error(String, Boolean)
Verse.Log:ErrorOnce(String, Int32, Boolean)
Verse.<DoTabGUI>c__AnonStorey0:<>m__0()
Verse.ImmediateWindow:DoWindowContents(Rect)
Verse.<WindowOnGUI>c__AnonStorey0:<>m__0(Int32)
UnityEngine.GUI:CallWindowDelegate(WindowFunction, Int32, Int32, GUISkin, Int32, Single, Single, GUIStyle)

These are the mods I am running in their load order:

Core
Pick Up and Haul
ED-Enhanced options
EdB Prepare Carefully
Expanded Roofing
HugsLib
MadSkills
StackXXL
Tilled Soil
[1.0] Removable Mt.Rock Roof Patche
[KV] Force Do Job - 1.0
Allow Tool
RimHud
Mend And Recycle
While You're Up [1.0.]
Achtung!
Animal Tab
Blueprints
Camera+
Doors Expanded
Fluffy Breakdowns
Heat Map
Hospitality
Better Workbench Management
Numbers
Medical Tab
Pawn Rules
Pharmacist
Predator Hunt Alert
Prepare Landing
Quality Builder
Rah's Bionic and Surgery Expansion
Replace Stuff
[RF] Fertile Fields [1.0]
ResearchPal
[KV] Rimfridge - 1.0
TD Enhancement Pack - Dev Build
Simple Sidearms
Roppoi Hair 1.0
Colonist Bar KF 1.0
Smart Speed
Rimworld Search Agency
[KV] Trading Spot - 1.0
Wall Light
Work Tab
Minify Everything
[KV] Show Hair With Hats or Hide All Hats - 1.0

[attachment deleted due to age]

[Kazitox]

Update: I've managed to fix it by disabling Rimworld Search Agency. I'll leave this up in case anyone else gets this problem.

[Canute]

That's curious, i am using RSA all the time and never encounter such a problem.
Did you use this version
https://github.com/Killface1980/StorageSearch/releases/tag/1.0.2.3
or another ?