Rossyair

Ah see now that's the mod I'm attempting to run, let's call it the most important mod. Any way I could work around it?

https://www.dropbox.com/s/r00z59cfjfboln5/latest client.log?dl=0 https://www.dropbox.com/s/uiut3o9z2gupb2g/latest server.log?dl=0 Both files.

I am aware there has been many posts like this one but I can't seem to find it anywhere on the internet. "A fatal error has occurred, this connection is terminated" My log has been attached. The mods I'm using are: BetterFPS-1.4.8, BiomesOPLenty-1.12.2-7.0.1.2384, MapWriter-1.12.2-2.8.2, OptiFine_1.12.2_HD_U_D3, PixelEtras-1.12.2-2.3.6, PixelmonGenerations-1.12.2.2.0.3 I'm running Forge 1.12.2 and Java 1.8. I'm using my own custom modpack and I cannot log into a server or a singleplayer world without it giving me this error. Any help wiith this issue will be appreciated. I'm not good with this kind of thing. Ross