Got these erros:
[Potions! MO Sub Mod Patch - Start of stack trace]
Verse.PatchOperationReplace(xpath="Defs/ThingDef[defName="Artemiish_RootSpiritStill"]/costList"): Failed to find a node with the given xpath
Verse.PatchOperationSequence: Error in the operation at position=2
[End of stack trace]
The top operation is the one that failed, the ones below it are the parents
Source file: C:\Program Files (x86)\Steam\steamapps\workshop\content\294100\3260560011\1.5\Patches\Medieval OverhaulSubRecipePatch.xml

UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch5 (string)
XmlExtensions.ErrorManager:PrintErrors (string,Verse.ModContentPack)
XmlExtensions.PatchOperation_Patch:Postfix (Verse.PatchOperation,bool&,System.Xml.XmlDocument)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.PatchOperation.Apply_Patch2 (Verse.PatchOperation,System.Xml.XmlDocument)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.LoadedModManager.ApplyPatches_Patch4 (System.Xml.XmlDocument,System.Collections.Generic.Dictionary`2<System.Xml.XmlNode, Verse.LoadableXmlAsset>)
Verse.LoadedModManager:LoadAllActiveMods (bool)
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__6_1 ()
Verse.LongEventHandler:RunEventFromAnotherThread (System.Action)
Verse.LongEventHandler/<>c:<UpdateCurrentAsynchronousEvent>b__28_0 ()
System.Threading.ThreadHelper:ThreadStart_Context (object)
System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
System.Threading.ThreadHelper:ThreadStart ()

and this one:
[Potions! MO Sub Mod Patch] Patch operation Verse.PatchOperationSequence(count=13, lastFailedOperation=Verse.PatchOperationReplace(Defs/ThingDef[defName="Artemiish_RootSpiritStill"]/costList)) failed
file: C:\Program Files (x86)\Steam\steamapps\workshop\content\294100\3260560011\1.5\Patches\Medieval OverhaulSubRecipePatch.xml
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch5 (string)
Verse.PatchOperation:Complete (string)
Verse.PatchOperationSequence:Complete (string)
Verse.LoadedModManager:ClearCachedPatches ()
Verse.LoadedModManager:LoadAllActiveMods (bool)
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__6_1 ()
Verse.LongEventHandler:RunEventFromAnotherThread (System.Action)
Verse.LongEventHandler/<>c:<UpdateCurrentAsynchronousEvent>b__28_0 ()
System.Threading.ThreadHelper:ThreadStart_Context (object)
System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
System.Threading.ThreadHelper:ThreadStart ()