Post thumbnails stopped working
Yesterday my website post thumbnails stopped working. When I try to debug them with Sharing Debugger, I get no thumbnail but working link in ther "og:image" section. When I try to open the image that is generated via Facebook, I get "Unsigned URL".
https://external.fktw1-1.fna.fbcdn.net/emg1/v/t13/13093629058477966858?url=https%3A%2F%2Fsonder.com.pl%2Fwp-content%2Fuploads%2F2024%2F02%2F%D0%B4%D0%BB%D1%8F-%D1%81%D0%B0%D0%B9%D1%82%D0%B0-5-2-1920x1280.png&fb_obo=1&utld=com.pl&stp=c0.5000x0.5000f_dst-emg0_p540x282_q75_u&ccb=13-1&oh=06_AbGQivV81oRk2c0ldv3NFES_Fu12LYOUYfJsZbiuMgGcPg&oe=65E390A6&_nc_sid=e42f53
I have no idea what I'm doing wrong.