Error:

CExBackup::backupService:HrESEBackupSetup: Error Number 0xc8000230: The database missed a previous full backup before the incremental backup.

Cause:

The message suggests that a full MS Exchange server backup has not been performed before the transaction log backup.

Resolution:

Perform 2x manual database backups (using default incremental delta settings) on the exchange backup set. The first backup may have warnings, whilst the second database backup should be successful.