Blueprints doesn't work

Hi, I’m a very beginner so I know barely nothing about many topics. So maybe it’s something very easy to fix. Thank you for your understanding.

I’m working on a beginner project. I created a kinda big map. I recently learned about diffirence between level and open world and I decided to turn my level into open world. When I try to convert my level into world partitioned map, it gives error. So I created a new blank open world and Ctrl+C Ctrl+V’ed everything. Everything works fine except blueprints.

What should I do?