Link doesn’t share properly when shared via text or social media

Hello, I have the Highend them and I recently added an events tab on my main menu. The link address is: https://britonpublishing.com/events/category/book-signing/ This is all fine, but when I use that link to share it via text or social media site it displays the text “archives” instead of events I attached a screenshot. WordPress says it is not them, they say it is an issue with the theme. Can you please help me with this?