If do_shortcode is blank, return some message

From several version of WordPress, it’s better to use https://developer.wordpress.org/reference/functions/apply_shortcodes/ io do_shortcode.

That said you can surely do something using has_shortcode() https://developer.wordpress.org/reference/functions/has_shortcode/

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