To run Listivo your host should supports:
PHP Version 5.6 or greater. PHP settings:
- upload_max_filesize = 64M
- post_max_size = 64M
- memory_limit = 196M
You can modify your server settings in the cPanel or in the php.ini file if default limits are too low. If you cannot modify it by yourself, please contact your hosting provider and send this minimum requirements so they can change it for you.