I can't buy it

Hi

I was trying to buy Minecraft Java Edition and every time i click on BUY this show me a error

"EXTERNAL_API_ERROR: {"error":"IllegalArgumentException","errorMessage":"User with id 4cd66e143ffbcbea7cb16c091900db4e has open payments or already owns Minecraft"}"

I understand the meaning of the last phrase, but i can't see the open payment, could you pls help me.

Thx for the time to read this