Question [HELP ASAP] URP files are now all pink when I imported Unity Particle Pack!

I was trying to get the big explosion effect from the Unity particel pack(https://assetstore.unity.com/packages/essentials/tutorial-projects/unity-particle-pack-127325) but didn't make a backup and now all my materials are pink, I am using URP btw. How can I fix this?
I was stupid and didn't make a backkup.

I don't want to start over because I have worked on this for countless hours.

Can an yone help me?

 

Wait i fixed it, i just needed to reassign my render pippeline asset int he project settings