Error after update

The mod Game Speed Button (0.2.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event game-speed-button::on_init()
core/lualib/mod-gui.lua:25: attempt to index local 'player' (a nil value)
stack traceback:
core/lualib/mod-gui.lua:25: in function 'get_button_flow'
game-speed-button/control.lua:43: in function 'update_button'
game-speed-button/control.lua:264: in function <game-speed-button/control.lua:260>

Thank you very much for the report!
I have added a check to prevent this error.
Version 0.2.3 has been uploaded.

Thank you