CameraRaycaster / Walking problem

Hi there, been awhile. I finished this course last year and did some my own tweaks and other stuff for awhile. And now that I’m coming back to this project, I’m encountering bug. I can’t walk! My walk-curson isn’t showing the potentialwalkable at all, but when Enemy is in range and I click it, my playercharacter moves. But yet, I click-to-move otherwise. Here Are some console errors and lines for those errors.

I am using Unity 2017.3.1f1

NullReferenceException: Object reference not set to an instance of an object
RPG.CameraUI.CameraRaycaster.RaycastForEnemy (Ray ray) (at Assets/Project Daedalus/_CameraUI/CameraRaycaster.cs:56)
RPG.CameraUI.CameraRaycaster.PerformRaycasts () (at Assets/Project Daedalus/_CameraUI/CameraRaycaster.cs:47)
RPG.CameraUI.CameraRaycaster.Update () (at Assets/Project Daedalus/_CameraUI/CameraRaycaster.cs:37)

LINE 37: PerformRaycasts();
LINE 47: if (RaycastForEnemy(ray)) { return; }
LINE 56: var gameObjectHit = hitInfo.collider.gameObject;

New problem with the scripts that I found from 17b_cc_rpg.

NullReferenceException: Object reference not set to an instance of an object
CameraRaycaster.NotifyObserersIfLayerChanged (Int32 newLayer) (at Assets/Scripts/Originals/CameraRaycaster.cs:58)
CameraRaycaster.Update () (at Assets/Scripts/Originals/CameraRaycaster.cs:38)
NullReferenceException: Object reference not set to an instance of an object
CameraRaycaster.Update () (at Assets/Scripts/Originals/CameraRaycaster.cs:49)

LINE 38: NotifyObserersIfLayerChanged (0); // broadcast default layer
LINE 49: notifyMouseClickObservers (priorityHit.Value, layerHit);
LINE 58: notifyLayerChangeObservers (newLayer);

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