Happened a couple of times.
WARNING: Error running lua script: ...alliance\gamedata\lua.scd\lua\ui\dialogs\options.lua(497): attempt to call method `SetText' (a nil value)
stack traceback:
...alliance\gamedata\lua.scd\lua\ui\dialogs\options.lua(497): in function <...alliance\gamedata\lua.scd\lua\ui\dialogs\options.lua:494>
Also I cant get rid of speed but thats a separate topic.