it's most likely because of another plugin like Secure Chests but I thought I might share the error here just in case. when I open up the Secure Chests there is no sort button. if you can shed some light on this that would be great.
[Secure Chests] Chest was gave successfully to 'LizardMods'
[ServerVar] giving LizardMods 1 x Hammer
Failed to call hook 'OnLootEntity' on plugin 'QuickSort v1.8.0' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.QuickSort.IsContainerExcluded (BasePlayer player, BaseEntity entity) [0x0005d] in <a04d7713981f4d2c8b5ee0c926bcc13a>:0
at Oxide.Plugins.QuickSort.OnLootEntity (BasePlayer player, BaseEntity entity) [0x00008] in <a04d7713981f4d2c8b5ee0c926bcc13a>:0
at Oxide.Plugins.QuickSort.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00195] in <a04d7713981f4d2c8b5ee0c926bcc13a>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <87ce9ac9776a48658bc55eae6debe38b>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b6d06fce9e044af4a6ddc8d724bd3b0b>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b6d06fce9e044af4a6ddc8d724bd3b0b>:0
[Secure Chests] Chest was gave successfully to 'LizardMods'
Failed to call hook 'OnLootEntity' on plugin 'QuickSort v1.8.0' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.QuickSort.IsContainerExcluded (BasePlayer player, BaseEntity entity) [0x0005d] in <a04d7713981f4d2c8b5ee0c926bcc13a>:0
at Oxide.Plugins.QuickSort.OnLootEntity (BasePlayer player, BaseEntity entity) [0x00008] in <a04d7713981f4d2c8b5ee0c926bcc13a>:0
at Oxide.Plugins.QuickSort.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00195] in <a04d7713981f4d2c8b5ee0c926bcc13a>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <87ce9ac9776a48658bc55eae6debe38b>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b6d06fce9e044af4a6ddc8d724bd3b0b>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b6d06fce9e044af4a6ddc8d724bd3b0b>:0
CONTACT DEVELOPERS! LootContainer::PopulateLoot has null inventory!!!