Poly Brush texture painting is not working pleased help

IndexOutOfRangeException: Index was outside the bounds of the array.
Polybrush.z_ShaderUtil.GetMeshAttributes_Legacy (UnityEngine.Material material, Polybrush.z_AttributeLayout[]& attributes) (at Assets/ProCore/Polybrush/Code/Editor/Utility/z_ShaderUtil.cs:150)
Polybrush.z_ShaderUtil.GetMeshAttributes (UnityEngine.Material material, Polybrush.z_AttributeLayoutContainer& attribContainer) (at Assets/ProCore/Polybrush/Code/Editor/Utility/z_ShaderUtil.cs:111)
Polybrush.z_BrushModeTexture.CheckForTextureBlendSupport (UnityEngine.GameObject go) (at Assets/ProCore/Polybrush/Code/Editor/Brush Modes/z_BrushModeTexture.cs:164)
Polybrush.z_BrushModeTexture.OnEnable () (at Assets/ProCore/Polybrush/Code/Editor/Brush Modes/z_BrushModeTexture.cs:77)
UnityEngine.ScriptableObject:CreateInstance(Type)
Polybrush.z_Editor:SetTool(z_BrushTool) (at Assets/ProCore/Polybrush/Code/Editor/Interface/z_Editor.cs:513)
Polybrush.z_Editor:OnGUI() (at Assets/ProCore/Polybrush/Code/Editor/Interface/z_Editor.cs:307)
UnityEngine.GUIUtilityrocessEvent(Int32, IntPtr)