Error Building Avatar (2022.3.6f1)

Help!
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14

i have the problem and is typing me NullReferenceException: Object reference not set to an instance of an object
VRC.SDK3A.Editor.VRCSdkControlPanelAvatarBuilder+<>c.b__100_0 (System.String selected) (at ./Packages/com.vrchat.avatars/Editor/VRCSDK/SDK3A/VRCSdkControlPanelAvatarBuilder.cs:1541)
UnityEngine.UIElements.PopupField1[T].GetValueToDisplay () (at <332857d8803a4878904bcf8f9581ec33>:0) UnityEngine.UIElements.BasePopupField2[TValueType,TValueChoice].SetValueWithoutNotify (TValueType newValue) (at <332857d8803a4878904bcf8f9581ec33>:0)
UnityEngine.UIElements.PopupField1[T].SetValueWithoutNotify (T newValue) (at <332857d8803a4878904bcf8f9581ec33>:0) UnityEngine.UIElements.BaseField1[TValueType].set_value (TValueType value) (at <332857d8803a4878904bcf8f9581ec33>:0)
UnityEngine.UIElements.PopupField`1[T].set_value (T value) (at <332857d8803a4878904bcf8f9581ec33>:0)
VRC.SDK3A.Editor.VRCSdkControlPanelAvatarBuilder.HandleAvatarSwitch (UnityEngine.UIElements.VisualElement root) (at ./Packages/com.vrchat.avatars/Editor/VRCSDK/SDK3A/VRCSdkControlPanelAvatarBuilder.cs:1740)
System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__7_0 (System.Object state) (at <27124aa0e30a41659b903b822b959bc7>:0)
UnityEngine.UnitySynchronizationContext+WorkRequest.Invoke () (at :0)
UnityEngine.UnitySynchronizationContext.Exec () (at :0)
UnityEngine.UnitySynchronizationContext.ExecuteTasks () (at :0)