This UI is 10-15 years out of date.
Is this UI for the live EQ servers?
According to the README file that was in the folder, it looks like it's a mashup of Drakah's Default "old" Interface and something else.
It seems like all files from the default folder were copied over as well, A LOT
of files in there are not needed.
You were simply copying over a new animations file and templates file without adding back in the customizations for this UI.
For fun I sorted somethings out, just to get you started, but I think you should look for a new UI. Too many things need updating.
I updated or got working: Selector Window, Target Window (not the buffs/debuffs.) and Buff Window. As well as Animations and Templates.
Here is the link https://easyupload.io/5mey3s
. Chose Download with High speed option on the left.
Treat this as a NEW UI. DO NOT COPY OVER THESE FILES TO YOUR EXISTING FOLDER. MAKE A NEW ONE.