Maybe someone can help me?

My Razer Blade 16 (2023) is shutting down without any warning or error message, as if the Energy is gone. There was a short notice at one point of time that the power supply is not sufficient. I haven’t changed anything and it was running fine for months but now it’s completely not usable anymore. Sometimes it manage to boot up but than it shuts down again after 1-2 minutes.

thanks for the support