Old website template name showing when I send a link to the website

I used a template called “Solar Tech” and this name is showing up when I attach the link to a WhatsApp message or send via Slack instead of my actual website name.

I have followed the instructions on the forum about changing the title of the page in the settings part for every page and I have done that for every page. I cannot see Solar Tech anywhere in the titles or settings but this bug is still affecting Slack and WhatsApp links - please advise.

Were you able to solve this? I’ve ran into the same issue. Did it change in time?