The German has endured a poor campaign in Turkey and reports emerged last week that his on-loan side would not be signing him permanently.
"Goalkeepers can sometimes be unlucky. Good goalkeepers also concede very bad goals. They say the ball has eyes. If the ball has an intention, it enters from somewhere.
"I don't think it is right to judge the players. We will do the best we can do at the end of the season."