Your main monitor can’t be set to 256 colors or grays. If you have a 2nd monitor that can, quit, make it your main monitor, and restart.

Can’t save “The Fools’ List”. The disk may be locked. 

Can’t load “The Fools’ List”. Creating new “The Fools’ List” file.

Can’t save the preferences. The disk may be locked. 

Can’t load the preferences. Reverting back to defaults and creating a new preferences file.