@Kaxxia goto your world of warcraft folder then. WTF folder > account> account name> SavedVariables and delete Xperl related saved variables. should just be Xperl and xperl.lua.bak . I had the same problem and doing this fixed it for me.
A little thing i noticed with the latest release and 4.0 patch is that bartender does not seem to be abbreviating things like Numpad 1 to N1 anymore. Instead for me it shows Nu... which isn't a big deal just a little ugly compared to N1 and N2 etc.. and my main bar was not showing any binds it was still responding to 1 to = but the binds were not showing i had to actually rebind the bar to show them.