Remove meta description on certain pages

You should be able to remove the existing description tag with the following code:

remove_action( 'wp_head', '_wp_render_title_tag', 1 );

Put the above snippet inside the same function you are using to conditionally add a new tag so there is always only a single description tag at a time.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)