IntelliSnap Backup operations fail if the database is in the NOARCHIVELOG mode. Alter the database to ARCHIVELOG mode and then perform the IntelliSnap backups.
SQL>startup mount;
SQL>alter database archivelog;
SQL>alter database open;
Sometimes, the IntelliSnap backup operations may fail if you enable the SSKIPBACKUPBROWSE additional setting, so make sure that you disable the additional setting.
To add or edit an additional setting, follow the steps in Add or Modify an Additional Setting.