X by the server name in list

[mvp4kobe 1]

Hello all, I am new to this game and I got it a couple days ago to play the mods. So I go into the server list and look for a day-z mod server and see there are tons but the most popular ones are the ones that have a red x by their name in the far left. I did notice that I only have 1.60 and it was showing up red 1.62 that I guess you needed in order to get into their server. I was wondering how I find that 1.62 so I am able to get in?