CAS programming termination, rescue with Tool32 ?

Since I no longer find my login data, I unfortunately had to create a new account… Unfortunately I have the problem at the moment that I made the son of my boss the CAS control unit to acknowledge his service…. About the action plan in ISTA P the program suggested to “resurrect” CAS, i.e. “programming–>code”. Unfortunately, after a short time a programming interruption took place and now the car is almost dead…. No ignition, no ZV, nothing… About Tool 32 I can still read/receive AIF. But since I haven’t worked with it yet I need your help now how I can/should proceed. I would really be grateful for every tip!! But please don’t have any moral sermons according to the motto “if you don’t have a clue fingers off” or something. I’m a trained car mechanic and I learned it at BMW/Mini and spent a certain time there in the “e-bude”. Only these things are not on the agenda. te for years with DIS, Inpa, Ista, NCS etc. . Only the current problem I did not have so far… Thank you in advance !!!