(1.7.10) Crash joining world and 'internal server error' connecting to server

[Cyonis]

Good day. I and the other players players on my server are experiencing 'internal server error's when we try to connect to our server. The server itself boots just fine. I tried creating a world myself and connecting to that, but the game just crashes. Here's as much info as I can possibly give on the problem.

 

Note: I tried everything with freshly created worlds

 

Crash report when trying to load a save:

http://pastebin.com/DbCYpgnF

 

Server's latest.log

http://pastebin.com/mpUC1MpK

 

Server's forge log (starting at logging in):

http://pastebin.com/KHMvYPPt

 

If I should include any more, let me know.

 

I have googled the errors and I think I probably have a mod that is somehow incompatible with the version of Forge I'm using. It's 10.13.4.1566, by the way. But I can't figure out what it is exactly and similar problems are not similar enough to be of any help, sadly.

 

I installed forge by running the installer, which gave me the minecraft .jar file, the forge .jar file and the libraries folder. Then I copied the mod and config folder in and launched the server with my little script:

 

java -server -Xmx7G -Xms1G -jar ForgeMod.jar

 

Yes, I renamed the forge .jar

 

Thanks for reading, and even more thanks for helping!

[Cyonis]

I still don't know what the problem was. I redownloaded the mod pack I use and everything is working again.