Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32L0x2/USB_FS/LPMCSR#0x0
LPM control and status register
LPMEN
LPMACK
REMWAKE
BESL
https://github.com/cmsis-svd/cmsis-svd-data