"Unable to locate WordPress Root directory." after installing local host.

Hey guys, I’ve recently installed WAMP server on my computer and I installed wordpress in a folder called shruicha. My website is https://www.shruicha.com.

All was fine when I updated this website a few days ago, but now when I try to update my plugins or anything it asks me for my FTP credentials and when I give my details it said username/password error (I checked it and the credentials were right). So I checked the forum and put this in my wp-config.php
———————————————-
define( ‘FTP_USER’, ‘username’ );
define( ‘FTP_PASS’, ‘password’ );
define( ‘FTP_HOST’, ‘ftp.example.org:21’ );
———————————————-

(with my credentials ofcourse). Now it says :

“Unable to locate WordPress Root directory.

Installation Failed”

I’m wondering if this is because of the local host. I’m new to local host and I don’t understand how it may affect or what I can do. Any help will be much appreciated. Thank you.