[09:40:57] [Server thread/WARN]: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
[09:40:57] [Server thread/WARN]: 	at sun.reflect.GeneratedConstructorAccessor149.newInstance(Unknown Source)
[09:40:57] [Server thread/WARN]: 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[09:40:57] [Server thread/WARN]: 	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.Util.getInstance(Util.java:382)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1213)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1200)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl.java:2485)
[09:40:57] [Server thread/WARN]: 	at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl.java:2467)
[09:40:57] [Server thread/WARN]: 	at us.luckyclutch.rewardspro.database.MySQL.querySQL(MySQL.java:71)
[09:40:57] [Server thread/WARN]: 	at us.luckyclutch.rewardspro.time.CooldownStorage.get(CooldownStorage.java:84)
[09:40:57] [Server thread/WARN]: 	at us.luckyclutch.rewardspro.time.Cooldowns.getCooldown(Cooldowns.java:16)
[09:40:57] [Server thread/WARN]: 	at us.luckyclutch.rewardspro.time.Cooldowns.hasCooldown(Cooldowns.java:27)
[09:40:57] [Server thread/WARN]: 	at us.luckyclutch.rewardspro.utils.ItemFactory.putItem(ItemFactory.java:106)
[09:40:57] [Server thread/WARN]: 	at us.luckyclutch.rewardspro.utils.ItemFactory.addRewards(ItemFactory.java:150)
[09:40:57] [Server thread/WARN]: 	at us.luckyclutch.rewardspro.listeners.closeInv$1.run(closeInv.java:44)
[09:40:57] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71)
[09:40:57] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350)
[09:40:57] [Server thread/WARN]: 	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723)
[09:40:57] [Server thread/WARN]: 	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)
[09:40:57] [Server thread/WARN]: 	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)
[09:40:57] [Server thread/WARN]: 	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)
[09:40:57] [Server thread/WARN]: 	at java.lang.Thread.run(Thread.java:745)
[09:40:57] [Server thread/WARN]: [RewardsPro] Task #73708 for RewardsPro v2.1.6 generated an exception
java.lang.NullPointerException
	at us.luckyclutch.rewardspro.time.CooldownStorage.get(CooldownStorage.java:87) ~[?:?]
	at us.luckyclutch.rewardspro.time.Cooldowns.getCooldown(Cooldowns.java:16) ~[?:?]
	at us.luckyclutch.rewardspro.time.Cooldowns.hasCooldown(Cooldowns.java:27) ~[?:?]
	at us.luckyclutch.rewardspro.utils.ItemFactory.putItem(ItemFactory.java:106) ~[?:?]
	at us.luckyclutch.rewardspro.utils.ItemFactory.addRewards(ItemFactory.java:150) ~[?:?]
	at us.luckyclutch.rewardspro.listeners.closeInv$1.run(closeInv.java:44) ~[?:?]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]