Kozáčik lost his place into the starting eleven to the second goalkeeper of the team Marcos Argüello a 0-2 loss against HNK Šibenik at Antonis Papadopoulos Stadium. After the January transfer period Argüello moved to Club Bolivar and Kozáčik returned to the starting line-up for the rest of the season.
Kozáčik started as first-choice goalkeeper for the club's European matches. Then, Kozáčik lost his position to other club goalkeeper Dimitar Ivankov for the next two matches. After two matches Ivankov left the club and from this point Kozáčik continued as first-choice goalkeeper.