Some advice
First of all, before I mention anything, do you know how to work on these machines? If not, it would be advised that you contact your authorized Miele service center ASAP and have a qualified technician do the work.
If you want some forum member to help you with your problem, the first step is to be a bit more descriptive about the problem you are having. How are the lights flashing? How quickly? For how long? Are there any pauses? Which lights are flashing? In what order?
Can you take a youtube video of the issue you are having and post it here?