Location: Not attributing to issue.
Action: Attempts to craft vanilla minecraft recipes (Vanilla Wood-based Planks, Crafting Table, Furnace, Chest and Paper have been tested) in both inventory crafting and Crafting Tables.
Result: Vanilla recipes not existing. Inability to craft vanilla items.
Logs: Not Required. It is believed the issue is Server-Side, as Single Player works with no issue.
Java Version: 1.8.0-161 (64-Bit)
Additional Notes: Has been tested on the server by myself and another player (GrayGrim). Only limited to vanilla minecraft recipes, all non-vanilla minecraft recipes still work.