Bug Animator bug

I'm unable to use the animator, I can create animations (by which I mean create a file and record animations), but I'm unable to view anything at all, new animations and in the animator itself, it's just completely blank, even if I create a new state, so I can't edit anything or view/create transitions etc.
Any animation I have previously made creates multiple (and I mean 999+) of the below error. Can anyone help? I have Unity 2021.3.10f1.

Sorry if the info is vague, I'm still a beginner. If anyone needs more info please just let me know and I'll share what I can.

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.Graphs.AnimationStateMachine.Graph.GenerateConnectionKey (UnityEditor.Graphs.Node srcNode, UnityEditor.Graphs.Node dstNode) (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimationStateMachine.Graph.GetEdgeInfo (UnityEditor.Graphs.Edge edge) (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimationStateMachine.EdgeGUI.DoEdges () (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimationStateMachine.GraphGUI.OnGraphGUI () (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimatorControllerTool.StateMachineView (UnityEngine.Rect position, System.Single zoomLevel) (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimatorControllerTool.DoGraph (UnityEngine.Rect graphRect, System.Single zoomLevel) (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimatorControllerTool.<SetupGUI>b__143_12 () (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimatorControllerTool.ScopedOnGUI (System.Action onGUIHandler) (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEditor.Graphs.AnimatorControllerTool.<SetupGUI>b__143_10 () (at <9ffac171878549d2bb791ce761794ef0>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.IMGUIContainer.DoIMGUIRepaint () (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.UIR.RenderChainCommand.ExecuteNonDrawMesh (UnityEngine.UIElements.UIR.DrawParams drawParams, System.Single pixelsPerPoint, System.Exception& immediateException) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
Rethrow as ImmediateModeException
UnityEngine.UIElements.UIR.RenderChain.Render () (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.UIRRepaintUpdater.Update () (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.Panel.UpdateForRepaint () (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.Panel.Repaint (UnityEngine.Event e) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <fe7a0fa708534184bcd39b65327ff33e>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <a0ba38a310dd46a2a6c6f1870dd04b1d>:0)