We have confirmed the error where accomplishing achievements is not possible due to not being able to 

clear the mission <Use Nightmare Coins in Battle Pass>.

  Cause

We accepted the opinion that achievements related to Nightmare Coin usage for accomplishing the existing 

achievements is difficult, and in order to lower the difficulty of achievements using Nightmare Coins, 

we proceeded with an update to substitute some of it for Holy Coins.

We confirmed that there was a crash in this process.

  Response

We began to fix it as soon as it was confirmed, and after the maintenance that will proceed at 12,

the achievement will be changed to a most simple achievement.

  Compensation

The production team is deeply apologetic for the descendants of Solomon who could have enjoyed Lucifer 

over the weekend, but experienced inconveniences due to being unable to accomplish achievements.

In order to complete this Nightmare Pass or proceed with the next Nightmare Pass more easily,

We will issue <Nightmare Coins x1000> to all users as compensation. 

Once again, we sincerely apologize for the inconvenience. 

We will become a Prettybusy that checks more meticulously.

We sincerely thank you for enjoying Hell despite the inconveniences.