My chrysler sebring turns off
 

Hello, I have a 2007 Chrysler Sebring. The car was sold in Spain (in case it matters), the 2.0 version with 156 HP. When I make a trip of about 250km, sometimes the engine stops. A lightning bolt symbol appears in parentheses. You wait 2 minutes and it starts again without problems. I took it to the mechanic and no one knows how to find the problem. Does anyone know what this is due to?