V1.6.28 Rancher server crashes after 2 weeks (usually on sunday)


Installed on debian 9 host with docker containers; when it crashes, we lost all hosts and stacks added in the platform.
Some checks in Cattle’s(DB) logs show recent dumps on the table DATABASECHANGELOG cooresponding to the time when Rancher servers crashes.
This is the 3rd time that the problem appears and I have to import again the BD cattle which I kept a copy (export format)

Need help to solve this