i can't help u with this one, the development of this is stopped and it is much too old.
show me a log of your UltimatePaladinHealerBT not loading.
But keep in mind ... both are healing CCs ... not questing / fighting.
they have only absolutely low to none support for fighting, you should switch to retribution for questing and so, and use singular (i'm doin this right now and it is working fine).
Questing / farming / grinding / fighting as Holypaladin is absolutely NO option.
The HolyPaladin does (if u spent all your mana for dpsing) around 2k (with some luck 5k) DPS, every other Class can do this DPS-Value at level 70-75
this means for the current content (level 85 mobs) u'll need something around 1 minute per mob (level 81 mobs will take something around 20 seconds), so using a holy paladin is no option (i tried a long time to dps in arena / bgs if noone needs heal, but u can't even do enough dps to kill someone ... nearly every class has more selfheal than u can do)