So, what I think's happened is I was doing too much at once; by that I mean I turned my chunk render up to 25 and flew around really fast in the rain, and that's when the server broke, and now every time I try to log back in it crashes and comes up with this invalid biome id error.
I don't have very in-depth knowledge on troubleshooting or fixing server issues like this and was wondering if there's a step-by-step fix that already exists, or is this something that I can't deal with from my end
Fixed in 1.8. MC-29588