A Safe Place to Hide

A Safe Place to Hide is a level 63 quest required to progress the Scholar Questline. However, I cannot progress and think the quest may be bugged.

I am at the point in the quest where the quest states 'Cast Adloquium on Setoto.' However, I can't because every time I try it just says 'Invalid target.' I have tried Physick, Swiftcast Adloquium, Sacred Soil, Lustrate, Succor, every ability I have access to and I cannot heal her because 'Invalid target.'

I have already submitted this as a bug report, and already tried abandoning the quest and coming back to it. I am completely stuck, and unable to progress as Scholar as this is part of the main Scholar questline.

Any help or ideas would be greatly appreciated, I am a summoner main but have been learning Scholar and really enjoying it, and want to progress more with the character, but I can't right now until this is sorted.

Thank you all in advance, any ideas will be greatly appreciated, especially if anyone has also experienced this issue!