Exception thrown while invoking

[yingnierxiao]

Exception thrown while invoking [DidReloadScripts] method 'E7.NotchSolution.Editor.NotchSimulator:OnScriptsReloaded ()' : NullReferenceException: Object reference not set to an instance of an object
E7.NotchSolution.MockupCanvas.UpdateMockupSprite (UnityEngine.Sprite sprite, UnityEngine.ScreenOrientation orientation, System.Boolean simulate, System.Boolean flipped, UnityEngine.Color prefabModeOverlayColor) (at Library/PackageCache/com.e7.notch-solution@c5feabc4a6/Runtime/Base/MockupCanvas.cs:27)
E7.NotchSolution.Editor.NotchSimulator.UpdateAllMockups () (at Library/PackageCache/com.e7.notch-solution@c5feabc4a6/Editor/Simulator/NotchSimulator.cs:327)
E7.NotchSolution.Editor.NotchSimulator.OnScriptsReloaded () (at Library/PackageCache/com.e7.notch-solution@c5feabc4a6/Editor/Simulator/NotchSimulator.cs:269)

[Markovicho]

I get this message also every time when i start the editor: