Hello, reporting back after few days of non-stop fixing, I'm sad to say I lost almost all the data on the hard drive, "almost" standing for 99%, which set me back a few weeks... Luckily, I managed to rescue things critical for generation, because If I lost that, It would set me back MONTHS. I'm removing the old post about this issue.
It seems fine enough that I might be able to fulfill commissions again next week. I have ton of work, because I didn't only lose things related to this but also everything else on the drive which I have to replace.... Because of this, I will keep 3 day generation for now, likely up to January, but this is good news anyway.
Long story short, ton of pointless work was just dropped on my head, but It seems, at least for now, that this will only affect next two months and lost batches.
Thank you for your attention, I'll report again if anything changes again, but it looks like worse is behind us.