Fixed null issues

Libraries/Core/Helpers/ItemHelper.cs

@@ -1822,7 +1822,7 @@ public class ItemHelper(
 
         foreach (var mod in itemWithChildren)
         {
-            if (idMappings[mod.Id] is null)
+            if (!idMappings.ContainsKey(mod.Id))
             {
                 idMappings[mod.Id] = _hashUtil.Generate();
             }

Libraries/Core/Helpers/RewardHelper.cs

@@ -218,6 +218,7 @@ namespace Core.Helpers
             pmcData.UnlockedInfo.UnlockedProductionRecipe.Add(matchingCraftId);
             if (response is not null)
             {
+                response.ProfileChanges[sessionID].RecipeUnlocked ??= new Dictionary<string, bool>();
                 response.ProfileChanges[sessionID].RecipeUnlocked[matchingCraftId] = true;
             }
         }