Why when the CPE reboot the device is reset?

Hi guys, I have a problem because when a CPE does the reboot, it’s like reset…
My device is a Huawei EG8145V5

This is the LOG

2021-01-20T16:49:56.888Z [INFO]  00259E-EG8145V5-SN: Inform; cpeRequestId="37" informEvent="1 BOOT,M Reboot" informRetryCount=0
2021-01-20T16:49:56.973Z [INFO] 00259E-EG8145V5-SN: Script: CPE is (allegedly) provisioned, returning

everything seems OK, but the CPE has lost the configurtation!!

Someone could help me?