Keep getting these errors when trying to mine the dispense rates do not seem to be working either changed from 2X to 3X  5X and back to 2X nothing changed.

Failed to call internal hook 'OnDispenserGather' on plugin 'GatherManager v2.2.78' [1110811472] (Object reference not set to an instance of an object)
at void Oxide.Plugins.GatherManager.OnDispenserGather(ResourceDispenser dispenser, BaseEntity entity, Item item) in /home/container/carbon/plugins/GatherManager.cs:line 486
at object Oxide.Plugins.GatherManager.InternalCallHook(uint hook, object[] args) in GatherManager.cs/Internal:line 126
Failed to call internal hook 'OnDispenserGather' on plugin 'GatherManager v2.2.78' [1110811472] (Object reference not set to an instance of an object)
at void Oxide.Plugins.GatherManager.OnDispenserGather(ResourceDispenser dispenser, BaseEntity entity, Item item) in /home/container/carbon/plugins/GatherManager.cs:line 486
at object Oxide.Plugins.GatherManager.InternalCallHook(uint hook, object[] args) in GatherManager.cs/Internal:line 126