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So I made this Hamachi server to play with my friends and it worked just fine a couple days, until this one time I tried to run it and this happened!

First comes this:

enter image description here

After this the white window jumps up and disappears again.

And finally there's only left this:

enter image description here

marked as duplicate by Virusbomb, Schism, greg-449, Joachim, Reflexive Jul 13 at 20:03

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  • 1
    What happened in the time between the last time you ran it and now that could possibly have affected it? – rivermont - Will B. Oct 25 '16 at 16:06
  • Can you pastebin the text found in that error file? That would give us some direction to help – Zero Stack Oct 25 '16 at 16:06

A common JSON file which gets corrupt is the 'usercache.json' file, try deleting that and re-running the server, it will create a new one for you.

If this fails to fix it, the most simple way to fix this issue would just be to re-download a fresh server, move your world folders into it and server config and giving that a shot. If you have any mods, you could move them over too, if you then finds that breaks the server, it could be a mod issue, but I doubt that.


This happened to me. Try restarting Hamachi.

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