Tape media got changed to Unlabeled. Recover from Unlabeled LTO4 Tape Media Data

I've been having a problem with some backup data 7 years old. I used a Networker 9.1.1.5 server to back up data to LTO4 tape media, and now the tapes show as unlabeled. These tapes contain file backups, and I can access the original Networker software. The Tape library is still in good condition restoration is possible

I need a solution to recover this data. The server is running Windows.

Ideal Skills and Experience:
- Extensive experience with data recovery from tape media
- Proficiency in using Networker software
- Strong understanding of Windows operating system
- Previous work with LTO4 tapes is a plus
- Excellent problem-solving skills