Was wondering if anyone else is getting this error and knows a solution. It totally breaks the UI and requires a /reloadui to fix. Am guessing it's an addon issue, but am not seeing an addon reference in the stack traceback. This happens every day. It's an annoyance, but not critical.

/EsoUI/Ingame/DirectPurchase/DirectPurchase_Manager.lua:42: Attempt to access a private function 'QuerySkuCatalog' from insecure code. The callstack became untrusted 19 stack frame(s) from the top.
stack traceback:
/EsoUI/Ingame/DirectPurchase/DirectPurchase_Manager.lua:42: in function 'DirectPurchase_Manager:RequestCatalog'
	<Locals> self = [table:1]{} </Locals>
/EsoUI/Ingame/TamrielTomes/TamrielTomesScreen_Shared.lua:763: in function 'ZO_TamrielTomesScreen_Shared:OnShowing'
	<Locals> self = [table:2]{currentTierIndex = 1, pendingPreviewType = 0, areKeybindsAdded = T, currentCurrencyAmount = 27542, currentRewardTrackId = 1, selectedTomeIndex = 1, selectedTomeId = 1, activePreviewType = 0, initialized = T} </Locals>
/EsoUI/Ingame/TamrielTomes/Keyboard/TamrielTomesScreen_Keyboard.lua:351: in function 'ZO_TamrielTomesScreen_Keyboard:OnShowing'
	<Locals> self = [table:2] </Locals>
/EsoUI/Libraries/Utility/BaseObject.lua:324: in function 'ZO_DeferredInitializingObject:OnStateChanged'
	<Locals> self = [table:2], _ = "hidden", newState = "showing" </Locals>
/EsoUI/Libraries/Utility/BaseObject.lua:304: in function 'callback'
/EsoUI/Libraries/Utility/ZO_CallbackObject.lua:132: in function 'ZO_CallbackObjectMixin:FireCallbacks'
	<Locals> self = [table:3]{name = "TamrielTomesSceneKeyboard", state = "showing", wasShownInGamepadPreferredMode = F, restoresHUDSceneToggleUIMode = F, restoresHUDSceneToggleGameMenu = F, wasRequestedToShowInGamepadPreferredMode = F, fireCallbackDepth = 1, disallowEvaluateTransitionCompleteCount = 1}, eventName = "StateChange", registry = [table:4]{}, callbackInfoIndex = 1, callbackInfo = [table:5]{4 = F}, callback = /EsoUI/Libraries/Utility/BaseObject.lua:304, deleted = F </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:151: in function 'ZO_Scene:SetState'
	<Locals> self = [table:3], newState = "showing", oldState = "hidden", name = "TamrielTomesSceneKeyboard" </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Base.lua:213: in function 'ZO_SceneManager_Base:ShowScene'
	<Locals> self = [table:6]{exitUIModeOnChatFocusLost = F, hudUISceneHidesAutomatically = T, hudUISceneName = "hudui", numTopLevelShown = 0, fireCallbackDepth = 0, initialized = F, numRemoteTopLevelShown = 0, hudSceneName = "hud", isLoadingScreenShown = F, remoteSceneSequenceNumber = 441}, scene = [table:3], sequenceNumber = 441 </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Leader.lua:309: in function 'ZO_SceneManager_Leader:ShowScene'
	<Locals> self = [table:6], scene = [table:3] </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Leader.lua:392: in function 'ZO_SceneManager_Leader:OnSceneStateHidden'
	<Locals> self = [table:6], scene = [table:7]{name = "mailInbox", state = "hidden", wasShownInGamepadPreferredMode = F, restoresHUDSceneToggleUIMode = F, restoresHUDSceneToggleGameMenu = F, wasRequestedToShowInGamepadPreferredMode = F, fireCallbackDepth = 0, disallowEvaluateTransitionCompleteCount = 1}, lastSceneGroup = [table:8]{state = "hidden", fireCallbackDepth = 0, activeScene = 1}, nextSceneGroup = [table:9]{state = "showing", fireCallbackDepth = 0, activeScene = 1}, currentNextScene = [table:3] </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Base.lua:287: in function 'ZO_SceneManager_Base:OnSceneStateChange'
	<Locals> self = [table:6], scene = [table:7], oldState = "hiding", newState = "hidden" </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneManager_Leader.lua:339: in function 'ZO_SceneManager_Leader:OnSceneStateChange'
	<Locals> self = [table:6], scene = [table:7], oldState = "hiding", newState = "hidden" </Locals>
/EsoUI/Ingame/Scenes/IngameSceneManager.lua:409: in function 'ZO_IngameSceneManager:OnSceneStateChange'
	<Locals> self = [table:6], scene = [table:7], oldState = "hiding", newState = "hidden" </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:152: in function 'ZO_Scene:SetState'
	<Locals> self = [table:7], newState = "hidden", oldState = "hiding", name = "mailInbox" </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:284: in function 'ZO_Scene:OnTransitionComplete'
	<Locals> self = [table:7], nextState = "hidden" </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:279: in function 'ZO_Scene:DetermineIfTransitionIsComplete'
	<Locals> self = [table:7], nextState = "hidden" </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_Scene.lua:201: in function 'ZO_Scene:OnSceneFragmentStateChange'
	<Locals> self = [table:7], fragment = [table:10]{animationTemplate = "FadeSceneAnimation", allowShowHideTimeUpdates = F, state = "hidden", duration = 200}, oldState = "hiding", newState = "hidden" </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneFragment.lua:147: in function 'ZO_SceneFragment:SetState'
	<Locals> self = [table:10], newState = "hidden", oldState = "hiding", currentScene = [table:7] </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneFragment.lua:157: in function 'ZO_SceneFragment:OnHidden'
	<Locals> self = [table:10] </Locals>
/EsoUI/Libraries/ZO_Scene/ZO_SceneFragmentTemplates.lua:75: in function '(anonymous)'
	<Locals> _ = ud, completedPlaying = T </Locals>