Broken as of latest FP Update

Good Evening, 

The plugin compiles fine, however when trying to use the extractors, I get :

| Failed to call hook 'FillUpSkillExtractor' on plugin 'SkillExtractors v1.0.7' (InvalidCastException: Specified cast is not valid.)

at System.Convert.ToUInt32 (System.Object value) [0x00003] in <41d29b352f6a475ab1bf7c6628b82790>:0

at Oxide.Plugins.SkillExtractors.FillUpSkillExtractor (ConsoleSystem+Arg arg) [0x002d2] in <3ee55f149fa14848b21bf89c3b986d1b>:0

at Oxide.Plugins.SkillExtractors.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00272] in <3ee55f149fa14848b21bf89c3b986d1b>: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

Added info this error when attempting to "fill" empty "extractors" but the filled injectors work as expected to add xp.