BarraCade Unfortunately, it's hard to figure out what the problem is from the screenshot and description, so could you please create a minimal Unity project that can reproduce the problem and email it to us?: contact@esotericsoftware.com
Please include the URL of this forum thread in the email so we know the context. Then we can take a look at what's wrong.
Regarding how to download an older version of the spine-unity and spine-csharp runtime, as each new package is released, the old package becomes unavailable, so you need to use the Unity Package Manager to install older versions. For information on how to install via the Unity Package Manager, please see the following section of the documentation:
https://esotericsoftware.com/spine-unity-installation#Via-Unity-Package-Manager
Note that if you are using optional features, such as Timeline or Universal Render Pipeline (URP) support, and they were installed via Unitypackage, they will also need to be reinstalled via the Unity Package Manager. (Otherwise, the references will be incorrect and you will get an error.)