(dont mind this anymore lol) Text Mesh Pro Text Looks Like This After Trying To Apply URP to My Game

I managed to fix some of the text in my game, but now I can't. Anyone know how to fix this?

The only compiler error I am getting is:

NullReferenceException: Object reference not set to an instance of an object
TMPro.TMP_MaterialManager.GetFallbackMaterial (UnityEngine.Material sourceMaterial, UnityEngine.Material targetMaterial) (at Library/PackageCache/com.unity.textmeshpro@3.0.4/Scripts/Runtime/TMP_MaterialManager.cs:401)
TMPro.TextMeshProUGUI.SetArraySizes (TMPro.TMP_Text+UnicodeChar[] unicodeChars) (at Library/PackageCache/com.unity.textmeshpro@3.0.4/Scripts/Runtime/TMPro_UGUI_Private.cs:1323)
TMPro.TMP_Text.ParseInputText () (at Library/PackageCache/com.unity.textmeshpro@3.0.4/Scripts/Runtime/TMP_Text.cs:1927)
TMPro.TextMeshProUGUI.OnPreRenderCanvas () (at Library/PackageCache/com.unity.textmeshpro@3.0.4/Scripts/Runtime/TMPro_UGUI_Private.cs:1634)
TMPro.TextMeshProUGUI.Rebuild (UnityEngine.UI.CanvasUpdate update) (at Library/PackageCache/com.unity.textmeshpro@3.0.4/Scripts/Runtime/TextMeshProUGUI.cs:216)
UnityEngine.UI.CanvasUpdateRegistry.PerformUpdate () (at C:/Program Files/Unity/Hub/Editor/2020.2.1f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/UI/Core/CanvasUpdateRegistry.cs:217)
UnityEngine.Canvas:SendWillRenderCanvases()

Edit: My whole game is gone and I can't revert it

 

When you added the URP package, do you recall if there was a message asking about converting / upgrading shaders?

Can you post an image of the material inspector of one of those text objects?

I would like to see what shader is assigned to it. Make sure the screenshot shows the debug section of the material inspector so I can see the atlas texture of the material.