I'm being kicked out of the server for no reason with the writing "Please do not spam the server".

It happened twice already. I wasn't chatting even, then. Seems to be some glitch there.

did you spam any button? like space or something... that counts as it, i think

Nope, nothing, I was really only playing. ^^

There was some lag in general, so I don't know if that had to do with it.

maybe the lag.

This is something that happens to alot of people, so if any GM answered it, try and google it

It happens cause of ping. Your computer loses and resets connection with the server very fast but server thinks you're spamming the chat and kicks you.

or that ^

yeah i think it's probably from the lag

the weird thing is that my opponent was the one lagging, and didn't get floodkicked

it is something that needs to be addressed.