Use the attached data flow to check if your daily backups are taking place. The data flow will check the log files and produce an output of each daily backup status. This will help you to determine whether the backup failed or if it didn't start to begin with.
You'll just need to configure the Output Excel node to write the output to a location of your choosing. The Directory List node is already configured to look for your lae-webapp.log which holds the backup information.