Will you please go to your page/post gallery edit mode, gallery setting and page link as none.
here is a screenshot https://imgur.com/a/rx7A5
Let us know if this helps or need more help please do reply.
I would like to ask you a favor Siar. Would you mind taking a few minutes to write a review for me, please?
Your comments help others know what to expect when they’re looking for the theme we offer.
Link to rate our theme: https://wordpress.org/support/theme/envy-blog/reviews/?filter=5
Thanks for using our theme, Siar. I’m looking forward to reading your comments.