Data Protector restoration issue

[Ramzy]

I am ruuing Data Protector verision 6.2 and am trying to resotore data off last week full backup. I recieved the foolowing error:
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[Warning] From: VRDA@dus01.c.net "I:" Time: 1/9/2008 1:09:58 PM
Missing of data block detected, expecting block 627887 !

[Major] From: VRDA@dus01.c.net "HP:Ultrium 3-SCSI" Time: 1/9/2008 1:20:52 PM
[90:52] Tape0:0:4:0C
Cannot read from device ([1117] The request could not be performed because of an I/O device error. )

[Normal] From: VRDA@dus01.c.net "HP:Ultrium 3-SCSI - DRIMS01" Time: 1/9/2008 1:20:56 PM
Changer0:0:4:0C
Tape Alert [32]: The library was unable to read the bar code on a cartridge

[Normal] From: VRDA@dus01.c.net "HP:Ultrium 3-SCSI" Time: 1/9/2008 1:22:13 PM
By: VRDA@dus01.c.net@Changer0:0:4:0C
Unloading medium to slot 6 from device Tape0:0:4:0C

[Major] From: VRDA@dus01.c.net "HP:Ultrium 3-SCSI" Time: 1/9/2008 1:23:18 PM
[90:114] By: VRDA@dus01.c.net@Changer0:0:4:0C
Cannot unload medium, target slot (6) appears to be occupied

[Normal] From: VRDA@dus01.c.net "HP:Ultrium 3-SCSI" Time: 1/9/2008 1:23:18 PM
ABORTED Media Agent "HP:Ultrium 3-SCSI"
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I also notice that the same tape media is full and have red mark on the Icon and the rest of the media have green color. I tried to scan the tap, it scans successfully.

Any idea.

Thanks