This error

[Canute]

Hi
does anyone have an idea about this error ?

Root level exception in Update(): System.NullReferenceException: Object reference not set to an instance of an object
  at Verse.ThingFilter.Allows (Verse.Thing t) [0x00000] in <filename unknown>:0
  at RimWorld.StorageSettings.AllowedToAccept (Verse.Thing t) [0x00000] in <filename unknown>:0
  at RimWorld.Zone_Stockpile.Accepts (Verse.Thing t) [0x00000] in <filename unknown>:0
  at RimWorld.StoreUtility.IsInValidBestStorage (Verse.Thing t) [0x00000] in <filename unknown>:0
  at RimWorld.ListerHaulables.ShouldBeHaulable (Verse.Thing t) [0x00000] in <filename unknown>:0
  at RimWorld.ListerHaulables.Check (Verse.Thing t) [0x00000] in <filename unknown>:0
  at RimWorld.ListerHaulables.ListerHaulablesTick () [0x00000] in <filename unknown>:0
  at Verse.Map.MapPreTick () [0x00000] in <filename unknown>:0
  at Verse.TickManager.DoSingleTick () [0x00000] in <filename unknown>:0
  at Verse.TickManager.TickManagerUpdate () [0x00000] in <filename unknown>:0
  at Verse.Game.UpdatePlay () [0x00000] in <filename unknown>:0
  at Verse.Root_Play.Update () [0x00000] in <filename unknown>:0

https://gist.github.com/HugsLibRecordKeeper/d5167e68c188a5f085d833c01e4956ea
https://ludeon.com/forums/index.php?topic=49861.0

[LWM]

Are you playing with the arachnophobia (rim of madness) mod?

[Canute]

It wasn't my error, but the spider arn't included in his modlist.
The user fixed the issue with deleting and recreate stockpiles.