Don't show Countdown

I have installed my wordpress in a folder.
It means the (wp-includes) folder is not in the root.

When I active the WP Maintenance Mode, the (jquery.js) would be addressed to the wp-includes folder in the root. (This is WRONG!)

the script tag in the page source is like this:
<script src="https://mydomain.com/wp-includes/js/jquery/jquery.js"></script>

it should be:
<script src="https://mydomain.com/(wp folder)/wp-includes/js/jquery/jquery.js"></script>

I thought the line number 483, in the (wp-maintenance-mode.php) class need to be modified.

https://www.ads-software.com/plugins/wp-maintenance-mode/