Solution 1 :
Step 1 : Go to your WP-ADMIN–>Settings–>Permalink
![wordpress2](https://i0.wp.com/clarifyall.com/wp-content/uploads/2020/10/image-1024x589.png?resize=735%2C423&ssl=1)
Step 2 : Chose URL structure and click and save button ,then issue will resolve.
![wordpress1](https://i0.wp.com/clarifyall.com/wp-content/uploads/2020/10/image-1-1024x433.png?resize=735%2C311&ssl=1)
Solution 2 : If still you are facing same issue we need to do below changes in .htaccess file.
Add below content in .htaccess file
#BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L] RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
# END WordPress
All the Best