How to insert custom text after H1 to all my blog posts?

Something like this in your template files

<h1><?php the_title(); ?></h1>
<p><small>THIS ARTICLE MAY CONTAIN COMPENSATED LINKS. PLEASE READ <a href="/link-to-disclaimber/">DISCLAIMER</a> FOR MORE INFO.</small></p>

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