Igen, mert nem https a beillesztes:

Mixed Content: The page at 'https: //www.metnet.hu/forum?topic=fotoiskola' was loaded over HTTPS, but requested an insecure image 'http: //optech.comlu.com/egyeb/egyeb/photos/2018.01.18.jpg'. This content should also be served over HTTPS , a tracking protection csak a dolgat teszi.