broken spark plug

Hello my consultation is the next the motorcycle did not start me and I took it to the workshop they have told me and I have bought by myself that the spark plug is broken by the steel nucleus, so the part of the thread has been left inside the butt tell me that to remove it you have to dismant Scooter Piaggio X9 125 Thank you very much for attending my request Greetings

There is always forms, the problem is that it would take much more and perhaps it can cause more damage than it already exists, and therefore be more expensive.