This German website says the woman claimed she has the children
https://aussiedlerbote.de/en/christina-block-the-children-are-with-me/
The steakhouse chain is called Block House
https://www.block-gruppe.de/en/restaurants/block-house/
From the article in post 9.
She expressed her thanks for the countless good wishes. “The children are well. I ask for your understanding that I am not making any further statements at this time, primarily out of concern for the welfare of my children,” the spokesperson said in the statement.
I would think more concern with the fact she has admitted to a criminal act.
The father was awarded custody be a court so she has committed several crimes at this point.
I would hate be the fall guys who helped with the abduction.