How to fix Netvault Backup Failed on running backup Differential and Full Backup?

Hello Quest Community,

Good Day. Newbie here. Its been a month of searching solution to fix this error. Note: We are using dell Ultrium tape drive and the netvault has no problem for detecting the tape drive. I also create new selection set for immediate backup, fullback up and differential backup but still got the same error. I would like to know if you encounter same error as mine. Please see below for reference:

When running Fullback up, the error message on view logs is "no suitable device or drive for Job"

When running Fullback up, the error message on view logs is "no suitable device or drive for Job"

When running Differential Backup, the error message on view logs is "Error getting index: No suitable backup to base incremental on, Failed to find previous full backup for set"

 

Thank you.