The error occurs when I am not in a party but I join a Random Dungeon in Classic Wotlk

65x [ADDON_ACTION_BLOCKED] AddOn 'Bartender4' tried to call the protected function 'UNKNOWN()'.
[string "@!BugGrabber/BugGrabber.lua"]:481: in function <!BugGrabber/BugGrabber.lua:481>
[string "=[C]"]: ?
[string "@Bartender4/libs/LibWindow-1.1-18/LibWindow-1.1.lua"]:178: in function RestorePosition' [string "@Bartender4/Bar.lua"]:313: in function LoadPosition'
[string "@Bartender4/Bar.lua"]:238: in function ApplyConfig' [string "@Bartender4/BlizzardArt.lua"]:156: in function ApplyConfig'
[string "@Bartender4/BlizzardArt.lua"]:129: in function <Bartender4/BlizzardArt.lua:128>
[string "=(tail call)"]: ?
[string "=[C]"]: in function `MainMenuBar_UpdateKeyRing'
[string "@FrameXML/MainMenuBar.lua"]:108: in function <FrameXML/MainMenuBar.lua:89>

Locals:
_ = Frame {
RegisterEvent = defined @!BugGrabber/BugGrabber.lua:487
0 =
UnregisterEvent = defined @!BugGrabber/BugGrabber.lua:487
SetScript = defined @!BugGrabber/BugGrabber.lua:487
}
event = "ADDON_ACTION_BLOCKED"
events =

{
ADDON_ACTION_BLOCKED = defined @!BugGrabber/BugGrabber.lua:553
ADDON_ACTION_FORBIDDEN = defined @!BugGrabber/BugGrabber.lua:553
PLAYER_LOGIN = defined @!BugGrabber/BugGrabber.lua:547
LUA_WARNING = defined @!BugGrabber/BugGrabber.lua:562
ADDON_LOADED = defined @!BugGrabber/BugGrabber.lua:507
}