When I try and get on to my friends server recently, it says
"Internal exception: java.io.IOException: Bad packet id 72"
I'm not sure what to do. I've tried deleting the mod-pack and reinstalling, signing out of my account on the Technic launcher, and him resetting the server, but it just does the same thing. I have tried searching the web but came to no conclusion why it does this. So here I am with an account, asking for help. The version/release is 1.6.4. But yeah any help would be great! The computer I am using is a mac if that helps.