I have my Drupal 8 site running on Ubuntu 14.04.4 OS under Nginx server. My site was crashed after installing few modules. Hence cannot able to fix it. I need to know whether is there is an option,

Unfortunately, Drush commands were also not working, hence I cannot able to restore.

• To remove the current Drupal & reinstall with a new one?
• Is there is any additional cost charge for this?