"Incident" and "join" events occur without problems but "Recover Prisoner" always gives the error below and pawn is deleted from the world.

Grammar unresolvable. Root 'questDescription'

GRAMMAR RESOLUTION TRACE
1 questDescription → A prisoner being held by [siteFaction_name] has managed to steal a radio and call you!\n\n[prisoner_nameDef] is being held at a camp near [map_definite][underArmedGuard]. Rescue [prisoner_objective], and [prisoner_pronoun] will join your colony. [prisoner_pronoun] is a [prisoner_age]-year-old [prisoner_title]. [prisoner_pronoun] says that [allSitePartsDescriptionsExceptFirst][formerColonistInfo][prisonerFullRelationInfo]
2 siteFaction_name → <color=#FF3333FF>Anlaus</color>
prisoner_nameDef → UNRESOLVABLE
2 map_definite → <color=#00BCD8FF>Colony</color>
2 underArmedGuard → under armed guard
prisoner_objective → UNRESOLVABLE
prisoner_pronoun → UNRESOLVABLE
prisoner_pronoun → UNRESOLVABLE
prisoner_age → UNRESOLVABLE
prisoner_title → UNRESOLVABLE
prisoner_pronoun → UNRESOLVABLE
allSitePartsDescriptionsExceptFirst → UNRESOLVABLE
2 formerColonistInfo → \n\n[prisoner_formerlyColonistInfo]
prisoner_formerlyColonistInfo → UNRESOLVABLE
2 formerColonistInfo →
prisonerFullRelationInfo → UNRESOLVABLE
questDescription → UNRESOLVABLE

CONSTANTS
Reunion_PrisonerRescue_exists True
Outpost_exists True
siteFaction_temporary False
siteFaction_hasLeader True
siteFaction_leader_faction OutlanderRough
siteFaction_leader_factionLeader True
siteFaction_leader_flesh Normal
siteFaction_leader_gender Male
siteFaction OutlanderRough
allowViolentQuests True

CUSTOM RULES
■questDescription → A prisoner being held by [siteFaction_name] has managed to steal a radio and call you!\n\n[prisoner_nameDef] is being held at a camp near [map_definite][underArmedGuard]. Rescue [prisoner_objective], and [prisoner_pronoun] will join your colony. [prisoner_pronoun] is a [prisoner_age]-year-old [prisoner_title]. [prisoner_pronoun] says that [allSitePartsDescriptionsExceptFirst][formerColonistInfo][prisonerFullRelationInfo]
■formerColonistInfo → \n\n[prisoner_formerlyColonistInfo]
■formerColonistInfo →
■underArmedGuard → under armed guard
■underArmedGuard →
■siteFaction_name → <color=#FF3333FF>Anlaus</color>
■siteFaction_pawnSingular → outlander
■siteFaction_pawnSingularDef → the outlander
■siteFaction_pawnSingularIndef → a outlander
■siteFaction_pawnsPlural → outlanders
■siteFaction_pawnsPluralDef → the outlanders
■siteFaction_pawnsPluralIndef → outlanders
■siteFaction_leaderTitle → prime councilor
■siteFaction_royalFavorLabel → null_output
■siteFaction_leader_nameFull → <color=#D09B61FF>Peter 'Pete' Marshall</color>
■siteFaction_leader_label → <color=#D09B61FF>Pete</color>
■siteFaction_leader_definite → <color=#D09B61FF>Pete</color>
■siteFaction_leader_nameDef → <color=#D09B61FF>Pete</color>
■siteFaction_leader_indefinite → <color=#D09B61FF>Pete</color>
■siteFaction_leader_nameIndef → <color=#D09B61FF>Pete</color>
■siteFaction_leader_pronoun → he
■siteFaction_leader_possessive → his
■siteFaction_leader_objective → him
■siteFaction_leader_factionName → <color=#FF3333FF>Anlaus</color>
■siteFaction_leader_kind → town councilman
■siteFaction_leader_title → test subject
■siteFaction_leader_titleIndef → a test subject
■siteFaction_leader_titleDef → the test subject
■siteFaction_leader_age → 35
■siteFaction_leader_chronologicalAge → 35
■siteFaction_leader_relationInfo →
■map_label → <color=#00BCD8FF>Colony</color>
■map_definite → <color=#00BCD8FF>Colony</color>
■map_indefinite → <color=#00BCD8FF>Colony</color>
■allowViolentQuests → True
■allowViolentQuests_duration → <color=#87F6F6FF>0 seconds</color>
■allowViolentQuests_money → $1.00
■allowViolentQuests_percent → 100%

UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.Log:ErrorOnce (string,int)
Verse.Grammar.GrammarResolver:ResolveUnsafe (string,Verse.Grammar.GrammarRequest,bool&,string,bool,bool,System.Collections.Generic.List`1<string>,System.Collections.Generic.List`1<string>,bool)
Verse.Grammar.GrammarResolver:ResolveUnsafe (string,Verse.Grammar.GrammarRequest,string,bool,bool,System.Collections.Generic.List`1<string>,System.Collections.Generic.List`1<string>,bool)
Verse.Grammar.GrammarResolver:ResolveUnsafe (string,Verse.Grammar.GrammarRequest,bool&,string,bool,bool,System.Collections.Generic.List`1<string>,System.Collections.Generic.List`1<string>,bool)
Verse.Grammar.GrammarResolver:ResolveUnsafe (string,Verse.Grammar.GrammarRequest,string,bool,bool,System.Collections.Generic.List`1<string>,System.Collections.Generic.List`1<string>,bool)
Verse.Grammar.GrammarResolver:Resolve (string,Verse.Grammar.GrammarRequest,string,bool,string,System.Collections.Generic.List`1<string>,System.Collections.Generic.List`1<string>,bool)
RimWorld.QuestGen.QuestGenUtility:ResolveAbsoluteText (System.Collections.Generic.List`1<Verse.Grammar.Rule>,System.Collections.Generic.Dictionary`2<string, string>,string,bool)
RimWorld.QuestGen.QuestNode_ResolveQuestDescription:Resolve ()
RimWorld.QuestGen.QuestGen:Generate (RimWorld.QuestScriptDef,RimWorld.QuestGen.Slate)
RimWorld.QuestUtility:GenerateQuestAndMakeAvailable (RimWorld.QuestScriptDef,RimWorld.QuestGen.Slate)
RimWorld.QuestUtility:GenerateQuestAndMakeAvailable (RimWorld.QuestScriptDef,single)
Kyrun.Reunion.IncidentAllyPrisonerRescue:Do ()
Kyrun.Reunion.GameComponent:DecideAndDoEvent ()
Kyrun.Reunion.HarmonyPatches/Dialog_DebugActionsMenu_DoListingItems_Patch/<>c:<Postfix>b__1_0 ()
Verse.Dialog_DebugOptionLister:DebugAction (string,System.Action,bool)
Verse.Dialog_DebugActionsMenu:DoListingItems ()
Verse.Dialog_OptionLister:DoWindowContents (UnityEngine.Rect)
Verse.Window:InnerWindowOnGUI (int)
UnityEngine.GUI:CallWindowDelegate (UnityEngine.GUI/WindowFunction,int,int,UnityEngine.GUISkin,int,single,single,UnityEngine.GUIStyle)