[Complaint] (Unknown player)

[Jovanc]

In-Game Nickname: (unknown)
Your username (Optional): Jovanc
Time and Date: night between 1.3. - 2.3.2020
Description of what happened: Someone randomly replaced some of my machine blocks with obsidian blocks while I was offline. Packagers, block placers, smeltery controller and some generators are the ones that got affected. My island is locked, so shouldn't be accessible without hacks.
Screenshots or Proof: https://imgur.com/a/QIqldpN
List of eyewitnesses: Players that were online at the time I noticed the damage included in screenshot (whoever did it not necessarily one of them)

[eytixis]

The server will replace blocks that cause a lot of lag with obsidian, so it doesn't have crash problems