Ftb Infinity 2.3.3 Home server crash when a friend joins (state Engine incorrrect)

[M-a-X]

Title:

Ftb Infinity 2.3.3 Home server crash when a friend joins (state Engine incorrrect)​

Launcher Version:

2.3.3 (minecraft 1.7.10)​

Modpack:

Ftb Infinity​

Modpack Version:

2.3.3​

Log Link:

https://gyazo.com/4b5386a9887a082ce12ed32e7c00c3f7​

Details of the issue:

since a few day i am having this Crash Screen whenever a 2nd Player joins (if i am alone on the Server (local hosted) everything is fine. We enabled chicken chuncks but i also tryed disabling it wich doesnt help, the eula.txt is true and the Firewall is configured (also tryed when disabled) i am using the latest Java Version (64bit) and also my friend who wants to join. i also tryed reinstalling Java ftb and the complete Server but when i use my world on the Server it keeps crashing ( a new generated world works)
so how do i get my "old" world to working in multiplayer?
Thank you for reading my Mail

Note: i also tryed putting my world in singleplayer and opening a lan world but then the same error ^^​

 

[Moasseman]

I'm not even gonna try to read that thing. Use the button on the FTB launcher console to paste it directly online and link it to us.

 

[M-a-X]

I'm not even gonna try to read that thing. Use the button on the FTB launcher console to paste it directly online and link it to us.

Ist not a FTB launcher problem ... ist a local hosted Server problem

 

[Moasseman]

Ist not a FTB launcher problem ... ist a local hosted Server problem

Well Sie müssen copy paste the log into pastebin.com or something similar Just paste it somewhere, a screenshot is horrible.

 

[M-a-X]

i somehow cant copie the Server log thats one of my Problems /STRG c and v dont work ^^ i am sorry

 

[Moasseman]

Alrighty let's kill my eyes then and see if there's something

 

[Moasseman]

Ruh roh, it seems you've got some corrupted chunks up there.

You can most likely fix them using the region fixer (https://github.com/Fenixin/Minecraft-Region-Fixer) but that will DELETE the chunks. While Minecraft will regenerate them, they will be in natural state.
This means that if you've built anything in those chunks, it will be GONE. Kaput, dead, disappeared.
Before you do anything to the world tho, take a BACKUP of it

Alas, I have no other ideas how to fix this. You might want to wait a while and see if anyone else knows more about this particular error-

 

[M-a-X]

Thank you <3 i am gone see what chuncks are deleted
do you know a way to prevent that from Happening again?

 

[Moasseman]

Thank you <3 i am gone see what chuncks are deleted
do you know a way to prevent that from Happening again?

Not really. Chunk corruption can happen just because the game decides so.