From fefb3930fbdcd117bed3950b2cab8bffcc4fb21c Mon Sep 17 00:00:00 2001
From: shagu <ericmauser@googlemail.com>
Date: Fri, 20 Mar 2020 08:54:14 +0100
Subject: [PATCH] addonbuttons: skip invalid button frames

---
 modules/addonbuttons.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/addonbuttons.lua b/modules/addonbuttons.lua
index 40930172..ca003a27 100644
--- a/modules/addonbuttons.lua
+++ b/modules/addonbuttons.lua
@@ -221,6 +221,7 @@ pfUI:RegisterModule("addonbuttons", "vanilla:tbc", function ()
   end
 
   local function BackupButton(frame)
+    if not frame then return end
     if frame.backup == nil then
       frame.backup = {}
       frame.backup.top_frame_name = GetTopFrame(frame):GetName()
@@ -273,6 +274,7 @@ pfUI:RegisterModule("addonbuttons", "vanilla:tbc", function ()
   end
 
   local function MoveButton(index, frame)
+    if not frame then return end
     local top_frame, row_index, offsetX, offsetY, final_scale
     top_frame = GetTopFrame(frame)
     final_scale = GetScale() / pfUI.addonbuttons.effective_scale