Neotrinity7

I just logged onto my personal server used with some friends, and every single wood-based block just vanished (or rather, every single one in my base chunk?). So that includes: All the wooden walls and floors Chests Fences Pressure Plates Beds Wheat for some reason? Somehow doors and trap doors aren't gone as if they're teasing me. Whether they were planks, logs, stripped logs, they were all gone. I spent so much effort on this base because it's my first real server and this really really saddens me to see all my hard work go away. Is it possible to troubleshoot and maybe pull up an older save for the server? I know I'm only a free user, but I hope I can get any help I can. Thank you.