You must wait for a moderator to take care of this request. It is not something automatic as stated here:
https://forums.d2jsp.org/info.php?p=26Quote
Keep in mind, clicking this link will not automatically remove your warn! You will need to wait to be processed by a moderator, which may take a while. Do not contact the d2jsp staff or Administrators, it will not speed up the process. The only way to have your warnings removed is to wait for the link appears, and to use that.