Bishop Kirykos Kontogiannis faces significant criticism for his heretical views on communion and fasting, claiming that laymen must adhere to strict fasting rules while exempting himself. He promotes beliefs that undermine traditional Christian teachings concerning communion, leading to accusations of hypocrisy and slander. His theories are categorized as various heresies, including sabbatianism, pelagianism, and pharisaism, opposing the tenets of the Orthodox faith and the authority of the Holy Canons.