My game keeps crashing i looked at the reports and its caused by tabbychat i went to remove it and it automaticly reinstalls when i delete the jar. is it possible to make it an optional mod?
For a temporary workaround until somebody who can make the server-side changes appears, you can delete the contents of the tabbychat.litemod file, while keeping the name the same, and it will not be considered missing. Alternatively you could use another launcher, but then you miss out on the pretty music.
It shouldn't redownload it unless there is a update for the modpack but it should show as optional now too.