Broken Dimension

Alright so, my friends and I play the Direwolf20 FTB pack for 1.7.10 (I believe it's called Direwolf20 1.10.0 on here?) and I started messing around with Mystcraft... AaAaaaand suddenly I managed to crash the server as I went to a new dimension. We started it up again, but as soon as I joined it crashed again. Obviously the dimension is broken, so I downloaded the world which was 790mb. I edit my player data so that I will be in the overworld and all that, pack it back into a zip file and proceed to upload it for 4 hours only to find out you can't upload files that are 790mb... What should I do?

EDIT: Maybe I should add as well that the latest backup I can return to was 2 days prior this and that wouldn't be very fun since a LOT has been done since then!

Quote from Boat555123

The world upload limit is 200 mb only and your download world which is 790 mb.

Well yeah, I already established that much... Sooooo is there anyway I can fix it without losing anything?

Quote from Boat555123

You can chrck your console log. And if you found the error paste that error in google it will tell you how you can fix it or just share your log here using pastebin.

Well, I already know why it's crashing. It's due to corrupt playerdata, thus I downloaded the world and fixed the player data. However, since the world is bigger than the allowed upload size I can't upload the fixed data... So I'm kind of stuck in a corner here! D: