fail Backup

during the backup a received some notifications

NetWorker media: (warning) TapeAlert flag "Interface error" has been posted for \\.\Tape3

NetWorker media: (warning) \\.\Tape3 writing: The request was aborted., at file 82 record 21455

NetWorker media: (notice) LTO Ultrium-2 tape 000060L2 used 164 GB of 190 GB capacity

NetWorker media: (notice) LTO Ultrium-2 tape 000060L2 on \\.\Tape3 is full

NetWorker media: (warning) verification of volume "000060L2", volid 3467766197 failed, can not read record 21451 of file 82 on LTO Ultrium-2 tape 000060L2

NetWorker media: (warning) \\.\Tape3 reading:

NetWorker media: (notice) Volume "000060L2" on device "\\.\Tape3": Cannot decode block. Verify the device configuration. Tape positioning by record is disabled.

NetWorker media: (warning) \\.\Tape3 reading:

NetWorker write completion: (notice) Writing to volume 000060L2 complete

NetWorker media: (warning) \\.\Tape3 reading:

NetWorker media: (warning) \\.\Tape3 reading:

NetWorker media: (notice) verification of volume "000060L2", volid 3467766197 failed, volume is being marked as full.

NetWorker media: (notice) Save set (1655881182) *****.****.loc:RMAN:0anb32kd_1_1 volume 000060L2 on \\.\Tape3 is being terminated because: Media verification failed

NetWorker media: (notice) Save set (1639103966) *****.****.loc:RMAN:0bnb32kd_1_1 volume 000060L2 on \\.\Tape3 is being terminated because: Media verification failed

Can someone explain me what is mind&

Thanks