My Kobans are gone!

[Avantador]

So i logged in recently and saw all my Kobans are gone. I had something like 144 +/-.

Does someone has the same problem? What happened?

Some info, I'm completly alone at home and nobody has access to my computer.

Nutaku ID 2397845

[Doctorwhoa]

Is it your kobans or your gold. If you don't use your gold it will expire after a certain period.