Studiomaster P7 Problem

[puresoundmusic]

Hi,

i´m Marc from Germany and i got a Problem with my Studiomaster P7.
It has swithed itself into security mode.
The display shows P1, the 4 led´s are flashing and all Channels are muted.
I ain´t got a Code or something.
Does anybody knows how to fix this Problem?

Thanks
Marc