You have to configure the rewrite rule in the Nginx configuration file for WordPress because Nginx does not use the htaccess file.
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Add the following code to the Nginx configuration file and you're done. Your site should work properly.
location / {root /home/domains/public_html;index index.html index.htm index.php;try_files $uri $uri/ /index.php?$args;}
Note: Download the backup of your Nginx config file before making changes. Change Location Path "/home/domains/public_html;" then restart the Nginx service after the changes.
