With what error? Just saying it's failing isn't much use.
Backups, full maybe diff, probably log depending on RPO and RTO requirements
Possible additional statistics maintenance
Test restores to ensure your backups are useful.
Alerts configured to tell you before things break
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
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