Hi You can do a couple of things to solve that issue. You can check the optical
device cable. it may be a driver issue you can upgrade your optical device's
driver. or you can buy a new cable.
https://www.allhdd.com/computer-cables/optical-cable/50-meter/sfp-25g-aoc7m-cisco-new-sealed/
Or you can also try to change your optical device or buy a new one.
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