How to insert image into the Settings Page of a Plugin?

plugin_dir_url() “gets the URL (with trailing slash) for the plugin __FILE__ passed in”.

<img src="https://wordpress.stackexchange.com/questions/249174/<?php echo plugin_dir_url( __FILE__ ); ?>logo.png">

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