First solution: Try resetting your router (idk)
Second: Are you on the right update? The server only runs on 1.7.2 and 1.7.4
Third: Maybe the server was resetting or was down at the time. Idk I'm not on.
Fourth: If not any of these, I think you should check your computer... also check on the status page to see if there are any problems.
Thanks to everyone who congratulated me! I don’t have the brainpower to respond to all of them, but thank you to everyone who has helped me get to this point. I’m going to try my best and I hope I can make the server a better place :)