The following piece of code enables the PWM, after deep sleep mode.
I have increased the clock frequency of PWM, so as to visually check if the LED is blinking. You have to ensure that PWM interrupt is triggered and that the system stays in active power mode long enough for the PWM interrupt to get triggered.
I have modified the project you had attached earlier. You could check it.
I hope this helps.
great support , thank you that works