Can you help with these error NullReferenceException: Max Size: SerializedProperty is null UnityEditor.EditorGUI.BeginPropertyInternal (UnityEngine.Re

[Joeymorgan158]

Sprite for my character just disappeared and it showed me this error:

NullReferenceException: Max Size: SerializedProperty is null UnityEditor.EditorGUI.BeginPropertyInternal (UnityEngine.Re

Here is the script:

public void ShowPlatformSpecificSettings()
{
    BuildPlatform[] validPlatforms = BuildPlatforms.instance.GetValidPlatforms().ToArray();
    int shownTextureFormatPage = EditorGUILayout.BeginPlatformGrouping(validPlatforms, EditorGUIUtility.TrTextContent("Default"));
    BaseTextureImportPlatformSettings.ShowPlatformSpecificSettings(m_PlatformSettings.ConvertAll<BaseTextureImportPlatformSettings>(x => x as BaseTextureImportPlatformSettings), shownTextureFormatPage);
}