Mogstation Error 401 for world transfer

Hi,

Two of my friends are continuously getting the Error 401 whenever they try to pay for World Transfer on Mogstation.

This has been happening for the past 2 days, it is not related to their banks and they already waited over 24hrs to try again. This is an issue on your side. Option to add crysta also doesn't work.
Some people have had this functionality down for over a week when they try do other things like - upgrade to collectors edition.

Please assist.