[10.0] LUA Error after Dragonflight prepatch

[Medorian]

Hi there,

after the Dragonflight PrePatch the following Error occured:

1x Interface/AddOns/TitanMail/TitanMail.lua:114: attempt to index global 'MiniMapMailFrame' (a nil value)
[string "@Interface/AddOns/TitanMail/TitanMail.lua"]:114: in function `TitanPanelMailButton_UpdateIcon'
[string "@Interface/AddOns/TitanMail/TitanMail.lua"]:263: in function `TitanPanelMailButton_OnEvent'
[string "*TitanMail.xml:13_OnEvent"]:1: in function <[string "*TitanMail.xml:13_OnEvent"]:1>

Locals:
forceAH = false
hidemm = 1
total = 0
iconshown = 1
alticon = 0
noiconnomail = 0
(*temporary) = nil
(*temporary) = nil
(*temporary) = 0
(*temporary) = nil
(*temporary) = "attempt to index global 'MiniMapMailFrame' (a nil value)"
TPM_player = "MalorneMedorian"
TPM_checkedmail = false