I bought a DX lens and the person who sold it to me, set my D800 on DX crop mode. I’ve then taken many pictures on this mode, little realising that I was losing most of the picture! A proper image was visible in the optical viewfinder but the pictures were hugely truncated, making them worthless.

CRUCIAL TO CHECK THE FOLLOWING MENU OPTION EVERY TIME BEFORE SHOOTING:

1. GO TO IMAGE AREA
2. MAKE SURE THAT AUTO-DX CROP IS OFF
3. CLICK ON CHOOSE IMAGE AREA
4. PICK FX ALWAYS

Go to Cloudflare SSL/TLS for the relevant domain
Change to FULL ENCRYPTION MODE

Also use these plugins (once you can see wordpress): https://developers.cloudflare.com/ssl/troubleshooting/too-many-redirects/#edge-certificate-settings

The ERR msg was solved but it turns out that the A record of Siteground that I had copied (from somewhere on the internet) was wrong. It had to be changed – which finally made the site online.