We have updated to 1.12.2, but not everything works right now. The permissions plugin is semi-broken by the update, which has lead to races, spells, guns, custom crafting and some other things not working.
The permissions plugin will be updated after the next autobackup. Updating it without a backup would be too risky since there may be all kinds of problems after the update.
The marker also needs to be updated with the new blocks.
As part of bug-fixing, elytra weapons are no longer blocked by helmets.
In the meantime, enjoy the features of 1.12: