The 19-year-old missed from the penalty spot and the Viola suffered a 2-1 defeat to Palermo.
“I feel horrible after having missed a chance to score,” Ljajic was reported as saying to Fiorentinanews.com.
“I know that I have disappointed many people, and there are others who say I am not worthy to wear the Fiorentina jersey.
“I want to thank those who are supporting me and who believe in me, as it will help me to become better in the future.
“I feel sick after missing the penalty.”
