crash-2016-06-22_16.49.06-client.txt

I dont know why this is happening im trying to play on a survival world that i dowloaded a long time ago I have played on it multiple times with no problems i didn't use snapshots on it but all of a sudden there are no mods installed on it and it crashes like 5 seconds after i spawn in the world and it says that there was trouble rendering the world but i dont understand why because i play on this server all the time its a single player server