Server Help

okay so i play on a server that i am mod on. I walked into an area of the world but i got frozen and my screen went all black,So i reloged on but it still wouldn't work (the server) But everything else was fine. i talked to the owner (Doesn't Have PMC) and he said he had no idea what was happening ,so then i tried to reaload my computer, after that i removed the IP adress and then readded it, and finally i deleted my .minecraft folder and then redownloaded it. It still doesn't work. If anyone could help me that would be great thanks!