It actually says "Pavlikans", which must have been the contemporary pronunciation of "Paulicians". It seems pretty strange that there were Paulicians in the 19th century, but this was probably a slur against any Christian community that was deemed heretical by the majority. The original ancient/medieval Paulicians were (or were accused of being) Manichaeans, a dualist religion (i.e. there are two deities, one good and one evil), but it was also a slur against heretical Christians back then too.

u/EnPassant1 wrote a bit about 19th-century Paulicians here: Why, out of all the regions in the Balkans, were Albania and Bosnia the only regions which converted to Islam?

It's a bit old now though so hopefully someone can talk more about the modern kind. For now I can also point to an old answer from me about medieval Manichaeans/Paulicians in the Byzantine army