Hi guys, I got a similar problem in uploading theme. After spending 15-16 hours, here is the solution I've found: 1. edit prestashop settings: administration>preferences , increase values at "upload quota" block 2. update php.ini file: 2.1 how to find the location of php.ini file: https://www.ostraining.com/blog/coding/phpini-file/ 2.2 update these values in php.ini (max_input_time 3200 | post_max_size 32M | upload_max_filesize 32M | max_execution_time 300) https://cloud.digitalocean.com/support/suggestions?article=how-to-change-your-php-settings-on-ubuntu-14-04&page=0&query=upload_max_filesize 3. restart php and nginx services: (in linux with these commands: "service nginx restart" "service php5-fpm restart") 4. increase client_max_body_size of nginx. ( http://stackoverflow.com/questions/2056124/nginx-client-max-body-size-has-no-effect ) 4th item of the list is not written in anywhere in prestashop forums and many people who cant find a solution especially vps users may need that. I hope it works for you too. Cheers, Ali