Help with $wpdb on custom code

If the IDuser field is an integer, try:

$um_profile_id = um_profile_id();

$fivesdrafts = $wpdb->get_results("SELECT * FROM wpjk_vuln WHERE IDuser = $um_profile_id");

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