Hello. This is the Gravity Co., Ltd. Ragnarok Zero Operations Team.
We would like to inform you about an identified issue when using the 
Poring Cupet.
It has been confirmed that the game closes when equipping an accessory on the Poring Cupet.
Regarding this issue, a temporary measure has been applied through a client patch
so that the Poring Cupet's appearance will now display as a Poring.
We apologize for the inconvenience, but please restart the game to apply the client patch before playing.
We will inform you of any further updates through our announcements.
We sincerely apologize for the inconvenience caused by this issue, and we will strive to provide a more stable environment.
Thank You.
Gravity Co., Ltd. Ragnarok Zero Operations Team