[O] M-up-arrow no longer moves text up

[Susan Cragin]

Hello. 

I compile both emacs and org-mode daily. 
Today M-up and M-down have stopped working as a mode of moving a line of plain 
text up and down. 
I get this message:
command-execute: Wrong type argument: commandp, handle-focus-in

The problem may be with emacs rather than with org-mode. I'm having other 
trouble such as that the ribbon on top (File / Edit / Options / Buffers / Tools 
/ Help) doesn't work either. 

Susan