I'm having this problem now. I fixed some other bugs to get rid of at least some of the Papyrus errors, and I'm CTDing when zoning into Labyrinthian Tribune. I've narrowed down the cause to this block of errors:
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 97
[06/29/2019 - 02:17:36PM] warning: Assigning None to a non-object variable named "::temp2"
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 97
[06/29/2019 - 02:17:36PM] Error: Cannot call IsHostileToActor() on a None object, aborting function call
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 98
[06/29/2019 - 02:17:36PM] warning: Assigning None to a non-object variable named "::temp5"
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 98
[06/29/2019 - 02:17:36PM] Error: Cannot call GetLeveledActorBase() on a None object, aborting function call
stack:
[alias refPlayerAlias on quest JaxonzNameGen (59000D62)].realnamesssepatchplayeralias.OnKeyDown() - "RealNamesSSEPatchPlayerAlias.psc" Line 607
[06/29/2019 - 02:17:36PM] Error: Cannot call GetName() on a None object, aborting function call
stack:
[alias refPlayerAlias on quest JaxonzNameGen (59000D62)].realnamesssepatchplayeralias.OnKeyDown() - "RealNamesSSEPatchPlayerAlias.psc" Line 607
[06/29/2019 - 02:17:36PM] warning: Assigning None to a non-object variable named "::temp25"
stack:
[alias refPlayerAlias on quest JaxonzNameGen (59000D62)].realnamesssepatchplayeralias.OnKeyDown() - "RealNamesSSEPatchPlayerAlias.psc" Line 607
[06/29/2019 - 02:17:36PM] Error: Cannot call GetActorValuePercentage() on a None object, aborting function call
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 113
[06/29/2019 - 02:17:36PM] warning: Assigning None to a non-object variable named "::temp2"
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 113
[06/29/2019 - 02:17:36PM] Error: Cannot call IsHostileToActor() on a None object, aborting function call
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 114
[06/29/2019 - 02:17:36PM] warning: Assigning None to a non-object variable named "::temp7"
stack:
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 114
[06/29/2019 - 02:17:37PM] Error: alias HealingTarget on quest SB_HealerWhiteMageQuest (284CE32C): Cannot force the alias\'s reference to a None reference.
stack:
[alias HealingTarget on quest SB_HealerWhiteMageQuest (284CE32C)].ReferenceAlias.ForceRefTo() - "<native>" Line ?
[alias WhiteMage on quest SB_HealerWhiteMageQuest (284CE32C)].LookForTarget.OnUpdate() - "LookForTarget.psc" Line 277
I don't think I've "cleaned my DLCs" - but I don't really know what that means. I ran LOOT awhile ago (like several years ago), but this is definitely the first time I've had this problem. What else should I do? Do I need to redownload the DLC packs from Steam?