Board Thread:General Mod Discussion/@comment-27388204-20161229005644/@comment-26172435-20161229043102

Java outdated?

I know you're using an old Apple from our FB chat, and that you may not be able to upgrade java?

Try a reinstall with Forge version 1291. That's the good auld base still used for the mod. If it won't run properly with that version, the cause is definitely in the system set-up.