Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32l0/STM32L063/USB_FS/LPMCSR#0x0
LPM control and status register
LPMEN
LPMACK
REMWAKE
BESL
https://github.com/modm-io/cmsis-svd-stm32