Error when I changed F1 key to other command.

[Appollo]

Hi,
I have changed the F1 key to the DISTANCE command instead of the HELP command. It worked for a while, now I am getting the error attached. Any suggest to get it fixed?
Thanks

 

[Hussain]

Hi,
This occurs when the command-line is floating I have read an article about this in the following link, have look into it.
CADALYST
Cheers!