[FIX] pet load

Assets/Scripts/Managers/PetManager.cs

@@ -46,6 +46,9 @@ public class PetManager : MonoBehaviour, IDataPersistence
         GameObject[] petHealers = GameObject.FindGameObjectsWithTag("PetHealer");
         GameObject[] petFighters = GameObject.FindGameObjectsWithTag("PetFighter");
 
+        data.pets = new List<string>();
+        data.petsHealth = new List<double>();
+
         foreach (GameObject petHealer in petHealers)
         {
             PetHealth goodPetHealth = petHealer.GetComponent<PetHealth>();