all of my servers for multiplayer have gone and i just turned the game on and then they deleted them selfs they have done this more than one time in the past and i did not do anything to make them it happened by them selfs

We are unable to diagnose your issue due to the lack of proper debug information. Please review the guidelines before reporting issues.
In case of a game crash, please also attach the crash log from [minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/guides/finding-minecraft-data-folder/].

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