Unable to transfer account

I am trying to transfer my account so that I can play with my friends on Eu Nordic and East instead of Euw but I cant find the transfer region choises, I am under the tab "account" and can only find the Summoner Name Change. I dont know if this is a bug or because of ranked seson ending, if so please tell me when I will be able to change server again. Best regards EzyCarry <3
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