KESS V2 problem-FORD KUGA DCM3.5

[Citroenc5]

Hello people,
I tried to writing a new map with kess v2 in ford kuga dcm 3.5, but at the end of writing, some error appeared.
Now the car won't start, when I want to do ID again with kess v2 it shows me -Error while reading chassis-

and when I go to recovery, it says - Warning an error occurred during the writing. Check the connections

what should I do, I lost my car. please help if anyone knows

[Citroenc5]

and when I go to recovery, it says - Warning an error occurred during the writing. Check the connections

what should I do, I lost my car. please help if anyone knows

[smirnoff_rules]

not an easy ecu to recover , now you have lost id , if you havnt ktag your stuck ,, you need a replacement ecu and program keys back in or re aline immobilizer , mpps might recover if you press write only but slim chance , try forscan beta and see if you can recover with calibration file here , unzip

[Citroenc5]

thanks for the advice, so I screwed everything up.
I don't have a ktag, and if I were to buy one, I don't know if I'll be able to do it, I think it's a little more difficult.
I will have to contact an expert