Not being mean…just sayin’
Mine, so far, is OK. BUT…about a year ago I put a new 3TB Red in it. Wonder if that might be my saving grace. But my gosh, if your data are so important to you why not have it backed up? Better yet it might just be time to get a new NAS device. SMB1 is dead and might not be available on Windows AT ALL in the near future.
There is a member @nfodiz that’s pretty knowledgeable maybe he can help?
You can SSH into the MyBookLive. If you’re familiar with those commands maybe you could recover your data that way…but I’m not smart enough to help with that. HERE is a post which explains how to SSH into it.