[DCP-o-matic] URGENT HELP

Hi, A screening for this saturady is coming up and I am going nuts. I really need your advice please. I have been using DCPoMATIC without any problem for DCP and KDMs. I’ve done both and have protected them without any problem. Today I came back to do another KDM from a project in diplomatic and the button for the screens I have setup is greyed out. I do not understand this. The certificates (pen files) are good and in the dates are also ok in them. My questions for trying to solve this: 1. Is it possible that the project has been corrupted? 2.Is there any way I can create a KDM if I have the key for the encrypted material? 3. Can you create a KDM of a DCP that has not yet been created as a whole cus of its metadata? Thanks Eduardo (from Spain)