Invalid Steam Session Ticket Code 1404??

[Waveran]

What is this and how can I fix?

[Mr.Shovels]

this is not steam, this post is irrelevant

[MeshPolygon]

Hello, you are in Dragon Nest SEA forums. Dragon Nest for SEA region doesn't have a steam version yet. Are you perhaps from NA region or EU region? If so, please post your queries on the appropriate forum. They might be able to give you better answers.