Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F402xx_v2/USB_OTGFS_GLOBAL/GOTGINT#0x0
OTGFS interrupt register (OTGFS_GOTGINT)
VBUS is deasserted
https://github.com/cmsis-svd/cmsis-svd-data