Macro I can not control

I have a macro that has a long name and does not work it just  says language proficency. I do not remember making a broke macro and can not get it gone. Help please, I have cleared my cache and restarted both game and machine.

If it is at the bottom you have potentially/accidentally dragged a sheet macro down to it, thereby creating a linked macro that will have a name including a character id (-jeh2i5yti8hbsu2j or some such). You should be able to grab it by the 'handle' that appears on one side when you hover over it, then drag it off the bar and dispose of it that way. If none of that helps or makes sense it would be handy to get a screen shot to 'see' the problem.