Screen is black, shows menu and pictures I've taken

I am on a bicycle trip through South East Asia, in Thailand right now and I need 🙏🏼 my camera 🙏🏼.

My mobile isn't able to take good pictures 🙈.

I was on a trip through the Jungle took pictures... sometimes the lens needs awfully long to show a sharp picture or shows it for a moment and goes back to blurry when pushing the button. Changed battery and the screen turned black. If I try to take a photo nothing shows on the screen only the menu options and the pictures I have already taken are displayed.

I reset to default settings but nothing changed.

I am very happy and thankful 🙏🏼 for every help 😊.