java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nex

[Dinolek]

Hello,

I create a modpack for minecraft 1.7.10 and i have problems with crashing.

This is my crash report:

http://pastebin.com/V70vdRMY

This is my last log:

https://www.dropbox.com/s/0bvaff3nqpskp6w/fml-client-latest.log?dl=1

I think the problem is that line:

[Client thread/INFO] [FML/]: Server attempted to spawn an unknown entity using ID: {0} at ({1}, {2}, {3}) Skipping!

 

[larsgerrits]

1.7.10 is no longer supported by Forge.