Ateeq Rafeeq

Hi, Your server seems not adding the .htaccess file that's why the permalinks are not working in WordPress you can do few things to make permalinks work in your WordPress.
1) Make access to your all folders including your root folder in your server to Permission 755 Once you have set the permission of your directories in your server through FTP or by your hosting support.
2) Go to wp-admin >> Settings >> Permalinks and set the permalinks to post-name
Right now i have set your permalinks to default so you can see the inner pages as well thanks. Default WordPress links are working fine by permalinks with /post-name/ are not working for that you can try above. If that do not work please contact your hosting provider and tell them WordPress's Permalinks are not working.