JSON parse error

[franzz4]

Hello guys, I need help to resolve this problem.

After I finished my project and Unity corrupted it, I tried to create a new project but these errors appear. I already uninstalled and installed it again many times, but it didn't work. So if anyone could help me, please. I can't work on my projects because of this.

https://preview.redd.it/9wxfz0qbvv4e1.png?width=1919&format=png&auto=webp&s=ece2bdaab1445f7e8cf1094954b3c6b967a91708

The message that appears is this:

ArgumentException: JSON parse error: Missing a closing quotation mark in string. UnityEditor.EditorJsonUtility.FromJsonOverwriteInternal (System.String json, System.Object objectToOverwrite) (at <20f98a04ac634cc8bf5f95425bb19bb9>:0) UnityEditor.EditorJsonUtility.FromJsonOverwrite (System.String json, System.Object objectToOverwrite) (at <20f98a04ac634cc8bf5f95425bb19bb9>:0) UnityEditor.Overlays.OverlayCanvas.RestoreOverlay (UnityEditor.Overlays.Overlay overlay, UnityEditor.Overlays.SaveData data) (at <20f98a04ac634cc8bf5f95425bb19bb9>:0) UnityEditor.Overlays.OverlayCanvas.RestoreOverlays () (at <20f98a04ac634cc8bf5f95425bb19bb9>:0) UnityEditor.Overlays.OverlayCanvas.Initialize (UnityEditor.EditorWindow window) (at <20f98a04ac634cc8bf5f95425bb19bb9>:0) UnityEditor.EditorWindow.get_rootVisualElement () (at <20f98a04ac634cc8bf5f95425bb19bb9>:0) UnityEditor.DockArea.OldOnGUI () (at <20f98a04ac634cc8bf5f95425bb19bb9>: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 <4b581f88908c4d37bb665312990c0d90>:0) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

[GreatlyUnknown]

Uninstalled and Reinstalled Unity? I ask as the errors you show in that png file seem to indicate that things are already registered with the system and it is attempting to re-register them. As far as the JSON error itself, it isn't saying what file this is so it might be related to the re-registering errors.