The server is running the full 1.8 update. Some plugins are broken for the time being but should be back soon. Some signs are broken because the way the server saves and formats them has changed in 1.8. Lock signs are broken and need to be replaced asap. Gate and Bridge signs need to be replaced as well. I tried a utility to automatically convert the signs, but that caused a lot more problems. Please, do not loot chests with broken locks.