Changes made like ( course created, user account created, quiz attempts, logs) are gone missing. Issue is happening intermittently,
Example of issues happened.
1) New student accounts created yesterday, site successfully created user logins and sent notification to respective user and we were able to see all new users created yesterday, when we checked today, all user created yesterday went missing.
2) I created a course on 16th Dec which went missing on 18th Dec.
3) Course editor made changes on one of the course on 15th Dec afternoon which went missing on same day evening.
When I check logs, even logs are missing. Also not getting any error message on Site.
I'm not sure where to start troubleshooting this issue
Thank you in advance