Back to Main Menu From a Pause Screen

Hello everyone. I’m trying to set a way back to main menu from a pause widget. I’ve tried many ways but i can’t figure out how to do this. I’m using a persistent level with sublevels. When i try only to create widget(main menu) it works fine. If i load the main menu level it works well too. But the current level where the character is does not unload.
Here’s my last try(after a lot of research) before posting here.

any help?