Gilera Runner 180 ignition problem

A cordial greeting colleagues
I have a problem with my gilera, does not want to recognize the master key, the witness lights up 3 times and it is on, the motorcycle came working perfect and from one moment to another I did not want to turn on again, my question is you can remove that key of blocking of the key, or reprogram the other you see the master key, please help me, and please I need the service manual of that motorcycle or the electrical diagram. It has not been possible to find it is a Runner Gilera 180 year 2002

Please help me with this problem I have not been able to solve it