Games : Locating server on Lifeboat?

Okay. Long question, but... So I went on the app called 'Servers PE.' I downloaded a server called 'Minecraft Lifeboat 11.' Its basically the hunger games with people all around the world on the server. So it worked about seven times I went on it, but then I went back on it for the eighth time and it wouldn't show me the server. It was on the loading screen and it had a spinning `/' sign. It said 'Locating server,' and then after a couple of seconds, it said 'unable to connect to server.' I downloaded it again and it still won't work. I deleted that one and all my other worlds and downloaded another Lifeboat, and that wouldn't work. My world's that I build still work, though. The worlds just won't load. My WiFi is connected. I check it every minute in case it goes wrong. The server name is called 'Lifeboat 2.' But I don't know if the title is OK. I don't think '2' is a symbol that affects the problem. I refresh and refresh. I tryy my multiplayer name and it is 'SuperGirl' which matches my skin. Please note that, - this is on android, Hudl 2. - I first downloaded the server and used it on block launcher. After a few times, adverts popped up. I pressed the cross on them, but when I did, it said, 'disconnected.' That's when the whole problem occurred. I try it on the actual Minecraft official map and it doesn't even work on that. - I use a skin and everything from block launcher. - adverts pop up frequently which is annoying, and then I accidentally click on them and it leads to google chrome. I go back and its disconnected. But that doesn't happen now, since it doesn't even let me on the world. Thanks for reading. And also, * I HAVE UPDATED THE APP! * the last time I updated it was now. But please help and thank you so much for actually reading! ='-(**