Profile: AlimB3245

Problem:

Setup theme file for single custom type post.

Solution:

The Toolset content template works only in post content area, according to the your description, the single "optician-profile" post is rendered by theme file single-optician-profile.php, and render the post content with Toolset content template.

Relevant Documentation:

https://developer.wordpress.org/themes/basics/template-hierarchy/#single-post