Buildcraft version: 7.99.7
Forge version: MC1.11.2 Forge 2476
Link to crashreport or log (on pastebin or gist, please don't put the entire log here) : https://pastebin.com/aZXReWf1

Singleplayer/multiplayer: %AppData% log,play in multiplayer server

Additional information:

Can you upload the log file to https://gist.github.com/ and link back to it please?

As for the gear equipped bug, what is the redstone engine powering?

Sorry forgot the put the log b4 posting lol
I asked my friends from the server,seems that it's not buildcraft's problem