from a brief look there seems to be several spells modified in module: all cure spells, darkness, dismissal, greater restoration, harm, healing circle, mass heal, restoration, negative ray and burst, raise dead, resurrection, light.
Also Aielund uses EMS which if I recall completely rewrites all spells with modified versions. So no spell-related features will work in Aielund with PRC Lite since unlike original PRC it doesn’t contain the spells scripts in order not to break customized spells from module.
one way to avoid this would be to gut content of EMS hak
EDIT: note that the spell debug will print normally in the aielund because spellhook runs before spell and tells the spell to use new caster level, dc, etc. but EMS spellscripts doesn’t support that so it won’t work with them
alternatively I could do the same what original PRC and include all spellscripts within hak, however then it will replace modified spells which I consider a bad practice.