It also gives an error (I haven't looked at why yet), I just saw it in the console
(22:14:16) | Failed to call hook 'OnFuelConsume' on plugin 'SkillTree v1.7.12' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.SkillTree.OnFuelConsume (BaseOven oven, Item fuel, ItemModBurnable burnable) [0x00110] in <95d0d1aca1f64d7eabcca6bac4917b55>:0
at Oxide.Plugins.SkillTree.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0c1b9] in <95d0d1aca1f64d7eabcca6bac4917b55>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <42f9bedc659b4f4786eb778d3cd58968>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000de] in <15f61ddda771464d8246ebdce8ff4811>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <15f61ddda771464d8246ebdce8ff4811>:0