Bukkit

What steps will reproduce the problem?
I just followed instructions and did nothing special.

What is the expected output? What do you see instead?
Players should be able to open chests in the survival games, but they can't. Not even an error message. They can open chest if I OP them.

What version of the product are you using?
Latest.

Are you using a Spigot 1.8 patch build?
I think so.

Do you have an error log of what happened?
0

What other plugin(s) do you have on the server?
ClearChat, SweXCore, VoidWorld, PerWorldPlugins, PlugMan, PrisonRankup, Buycraft, AlphaChest, ScheduledAnnouncer2, JumpBlocks, DeathMessages, CoreProtect, PlayerHeads, WorldEdit, FirstJoinPlus, TitleMotd, Skript, Essentials, ClearLag, ChatControl, Modifyworld, Votifier, VoidSpawn, ProtocolLib, Multiverse-Core, LibsDisguises, KitAdder, EnchantPlus, EssentialsChat, NoPlugin, PermissionsEx, NoWeather, ChatBubbles, Multiverse-Portals, MineResetLite, ServerListPlus, Vault, EZBlocks, Lores, EnjinMinecraftPlugin, InSigns, MobArena, HolographicDisplays, MakeYourOwnCommands, VoteParty, WorldGuard, EpicSpleef, ServerSigns, EssentialsSpawn, TitleManager, CasinoSlots, InventoryFull, Paintball, RandomTP, CrateReloaded, EchoPet, WGCustomFlags, GriefPrevention, ChestShop, WGRegionEffects, SurvivalGames

Please provide any additional information below.
I saw that someone else had the same problem in the comments.