We know that Jesus was not killed by his conspirators, but when God said he will raise him to Himself, this verse is very general. Another verse states that Jesus said (when he was an infant) ¨"Peace on me that day I was born, that day I die, and the day I will be raised up again" Explain to me this situation. Asaalaam Alaikum

Praise be to Allah, the Lord of the Worlds; and blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
There is no contradiction between two verses. Really, the raising of Isa (Jesus) has occurred. But his death will occur in the future after his descent to earth in the last days of this world.
Allah knows best.