In Q&A plugin Subcsription links don't work

My Wordpress expert programmer Chandan Chaudhery found the following error in your plugin.

Subscription doesn't work because url is not formatted properly:
current url: ..questions/second-question-2/?qa_sub=1&_wpnonce=bcdca3d5bd
correct url: ..questions/second-question-2/?qa_sub=1&_wpnonce=bcdca3d5bd

fix:
plugins\qa\core\subscriptions.php
function get_link
line #22
replace 'esc_url' with 'esc_url_raw'