This lora was made only for the sake of making an article and is not mean to be functional.
If you want a proper functional 1.5 Layna lora you can see one in the resources below.
There is also functional Pony and Illustrious version of this character
ILLUSTRIOUS:
Layna (Soul Nomad) XL - V1 | Illustrious LoRA | Civitai
PONY:
Layna (Soul Nomad) XL - V1 | Stable Diffusion LoRA | Civitai