Can't go into servers

I recently tried to get into a 1.9 server, but it crashed when I tried. I'm not sure if it is because of my operating system, or because there is a bug. I watched a few videos on how to fix this issue, but none of them worked. I might be doing it wrong, but I hope that this is just an early bug, since is a new update. If you have any suggestions, then please email me. Thank you!