Need help. Got stuck in blender "PaintRigV3"

I recently started using blender’s “PaintRigV3” to create small GFX for myself. Today I finished my first GFX and decided to make a new one, I opened “PaintRigV3” and it still had the same character model as last time. I tried reverting history, deleting things, and more. Nothing seemed to work, any suggestions?

You may have accidently saved it. Redownload it again from the source you found it from.

Delete the .blend1 file and it should reset the project file. if not then just unzip it again.