Entity.Unknown

Note: This story is fake, so don't believe in it. I created this just for fun.

First Encounter
I decided to make a server for my friends to join. My friends immediately added plugins so that the server will be more fun to play around. We started to build structures and sculptures. Everything was normal at this point on. We continued to play, until, the server crashed.

I don't know why the server crashed. I decided to take a look at a crash report the server generated and I saw 3 error codes that I don't recognize.

The 3rd code was suspicous, so I decided to reinstall the server software, and thankfully, the server didn't crash. While my friends was mining, I saw something in the distance. It looked like a creeper, but in black and white. I decided to go to the mysterious entity, and it dissapeared. My friends was kicked off from the server, including me. I decided to relog and it said "Connection Refused". But, my friends was able to relog, and they said "Everything was on fire". I decided to relog again, and it refused, but this time, the server froze with an error code "0x01Entity.Unknown". I closed the server, and reopeing it, didn't work. The server was corrupted.

Debugging into the source code
After few days, I decided to debug into the server software's code. I didn't find anything, until I went into section "403". I found a mysterious code. (I cannot turn this into a real code, since the server software corrupts)

I deleted the code, but I couldn't load the server since, the file was corrupted.