Call to undefined method – Download Monitor

It appears the issue was mostly with scope. In this case the following was needed to get the post ID:

php
$download->post->ID

I then was able to get my meta value by using the following:

php
$active_sub_status = get_post_meta( $download->post->ID , '_act_sub', true );

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