Cutt12

Im using the Technic launcher to use the Realm of Mianite (reuploaded) Modpack on a server with my friends. After I out of Minecraft, if I restart it and try to join the server it gives me a fatal error missing blocks and items. I looked in the logs and it said 8 blocks from Botania are missing. DOes anyone know a fix? No one else on the server is having this problem, and I didn't see a troubleshooting thread on here.