Peugeot 307 immobilizer problem

Hello guys .. I have 2002 model 307 XS.
I have been using my vehicle for 2 years without any problems, but 1 week ago my vehicle did not work on my way to work in the morning. We said it is immobilizer problem, when we looked at the service from the service I worked with, we could not solve the problem, that evening, I opened and closed my vehicle 7-8 times with a spare key, my vehicle worked.

My car did not work again in the morning after 3 days. a few hours later my friend ran it with my spare key. I have been using my vehicle with a spare key since there is a problem with my remote key. This morning I had the same problem with my backup key.

Why is this problem caused, is there anyone who has knowledge or experienced such a problem in the past?

Best regards
Erdogan Kilic

It makes it from the solenoid on the Mars engine. I know that solenoid repair is possible.

My friend immobilizer lamp is on when I turn the ignition, when I talk to my master, he says it is from immobilizer, not solenoid.