Error 4305
Severity Level 16
Message Text
The log in this backup set begins at LSN %.*ls, which is too late to apply to the database. An earlier log backup that includes LSN %.*ls can be restored.
Explanation
The restore operation found a gap between the last restore and the transaction log that you attempted to apply.
Action
Locate the missing, earlier transaction log backups and apply these first. Transaction logs must be restored in the same order in which they were backed up.