I have a feeling that this bug has been fixed already. Can you install 0.7.99+dfsg-0ubuntu3~ppa2 and see if it help please?
If it doesn't please open terminal copy and past the output of the following:
cat ~/.config/lxkeymap.cfg
Did you click any buttons or the crash happens just after you start lxkeymap?
I have a feeling that this bug has been fixed already. dfsg-0ubuntu3~ ppa2 and see if it help please?
Can you install 0.7.99+
If it doesn't please open terminal copy and past the output of the following:
cat ~/.config/ lxkeymap. cfg
Did you click any buttons or the crash happens just after you start lxkeymap?