"I was frustrated after the penalty and I was being fouled, but my reaction was bad," said Bikey.
"I know I should not have behaved like that, it was wrong.
"I also say sorry to the manager and my teammates because now I can't help them in the second leg.
"I understand that I was wrong and I will learn not to act like this again."
Bikey won't play again this season after his red card earned a four match ban that will carry into next season.