I decided to be a bit more helpful and provide you and anyone else who might read this with a more easily-installed version of BuffBars. All I did was create a folder with all the updates already applied. So all you have to do is download this file, un-zip it, and move the PengorosPlugins folder into your ~/Documents/The Lord of the Rings Online/Plugins folder so that the full path when you're done looks like this:
~/Documents/The Lord of the Rings Online/Plugins/PengorosPlugins

https://www.dropbox.com/s/ztau3s28d2...ugins.zip?dl=0
Please note that this is updated and current as of 2022-01-09. Unless I remember (And don't count on that!) when future updates are released this file won't be changed to include those updates. But it's the latest version as of right now as I'm writing this.

While lotrointerface.com has their own site policy about distributing plugins this way, I sincerely doubt any of the authors would object. If any of the three authors of BuffBars or its patches wants me to remove this file, I will do so upon request.

All the usual caveats and provisos apply about downloading and installing something from some Internet rando like me. You don't know me! I could be a hacker! So you're always safer getting your plugins from lotrointerface.com or some other trusted source. But I know some people throw caution to the wind and don't have the patience to patch their plugins themselves, so here you go.