(Bit More Than Minor Bug) Invalid Characters

ArgumentException: Illegal characters in path.

System.IO.Path.Combine (System.String path1, System.String path2) (at <9577ac7a62ef43179789031239ba8798>:0)
BaseNaming.CheckBaseName (System.String newName) (at <1c58b1f98f5849baa9083bfd5185b144>:0)
BaseNaming.OnEditing (System.String newName) (at <1c58b1f98f5849baa9083bfd5185b144>:0)
UnityEngine.Events.InvokableCall`1[T1].Invoke (T1 args0) (at <b8388ffefd6046f8a7b4080349da72eb>:0)
UnityEngine.Events.UnityEvent`1[T0].Invoke (T0 arg0) (at <b8388ffefd6046f8a7b4080349da72eb>:0)
TMPro.TMP_InputField.SendOnValueChanged () (at <69505be692bc4a6084ef7d9aeedce8a1>:0)
TMPro.TMP_InputField.Insert (System.Char c) (at <69505be692bc4a6084ef7d9aeedce8a1>:0)
TMPro.TMP_InputField.Append (System.Char input) (at <69505be692bc4a6084ef7d9aeedce8a1>:0)
TMPro.TMP_InputField.KeyPressed (UnityEngine.Event evt) (at <69505be692bc4a6084ef7d9aeedce8a1>:0)
TMPro.TMP_InputField.OnUpdateSelected (UnityEngine.EventSystems.BaseEventData eventData) (at <69505be692bc4a6084ef7d9aeedce8a1>:0)
UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IUpdateSelectedHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at <244a00f5d3d449fb9bf6fb0440c8f51a>:0)
UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) (at <244a00f5d3d449fb9bf6fb0440c8f51a>:0)
UnityEngine.EventSystems.EventSystem:Update()