Question about Google Pixel 7a

Hello Digitec, on my phone, actually without a fall or any influence that I can remember, the camera glass of the main camera shattered. You see, there is a relatively simple replacement of this component, only, I can't find it in the shop. Clean off the remains and glue on a new glass. How can I get a replacement glass for the main camera of the pixel 7a? Many thanks and best regards, Joachim