Describe the bug
1x KeyMaster/Core/UI/MainFrame.lua:7: attempt to index local 'frame' (a nil value)
[string "@KeyMaster/Core/UI/MainFrame.lua"]:7: in function <KeyMaster/Core/UI/MainFrame.lua:6>
[string "@KeyMaster/Core/UI/MainFrame.lua"]:66: in function <KeyMaster/Core/UI/MainFrame.lua:56>

Locals:
frame = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index local 'frame' (a nil value)"

To Reproduce
Steps to reproduce the behavior:
An error appears when you log in

Need more details on this occurrence.

Are you on the current release of KM?
Is this still happening?
Have you tried deleting the config file located at
[DRIVE]:[FILE_LOCATION]\World of Warcraft_retail_\WTF\Account[ACCOUNT_NAME]\SavedVariables\KeyMaster.lua and logging in again?
Have you tried disabling all other addons except Key Master and see if the error still persists?

If yes to all the above:
Client Language
Character level
Zone
Special status when logging in such as: In Combat, In resting zone
Any other possible initiators of this error.

Thanks!

Have you tried deleting the config file located at
[DRIVE]:[FILE_LOCATION]\World of Warcraft_retail_\WTF\Account[ACCOUNT_NAME]\SavedVariables\KeyMaster.lua and logging in again?
After deleting the file, no more error, tks!