Hi Daniela,
Boy, that screen is much harder to find than it should be! I did run across one vendor on AliExpress that's selling it.
[link|https://www.aliexpress.us/item/3256805422963558.html|LCD DISPLAY For nothing phone1 A063 LCD Display With Touch Screen panel Digitizer Assembly Replacement - AliExpress|new_window=true]
Be sure to verify your model number against the A063 model number mentioned in the listing. Fortunately, iFixit has you covered with a guide showing you step by step how to replace the screen yourself.
[guide|152449|Nothing Phone (1) Screen Replacement - iFixit Repair Guide|new_window=true]
With any luck, that'll get you going. Best of luck with your repair, and be sure to let us know how it goes!