I have a problem

-Cobwebs started spawning in my house for NO REASON AT ALL, they spawn in front of my eyes.
-Silverfish swarmed into my house, and believe me although my house is made of stone I PLACED THEM PERSONALLY and they are not silverfish blocks. Below my house is a jungle.

According to Taffy this is a season plug-in but really I don't think thats the way(no Taffy im not saying that your lying), spiders n silverfish spawn in 10s and 20s in my house and there has been NO OCCASIONS before that this happened. Please, I need an explanation of this.

I checked the logs, no such things happened on the server. I'm pretty sure there was some kind of Mineshaft trying to spawn on our house's chunk but failed. No such thing is SUPPOSED to be happening on the server/Minecraft.

For the silverfishes, on the server, Jungles spawns silverfishes...

well by "spamming silverfish" i mean 50-60 at once. i use water to flush them down the drain. n *waves* my house is in the sky whats a mineshaft doin there

Wow that is weird.