The Dollie plugin has the following server requirements:
MINIMUM REQUIREMENTS:
WordPress 5.0 or greater
PHP version 7.0 or greater
MySQL version 5.0 or greater
WooCommerce 4.0
WE RECOMMEND YOUR HOST SUPPORTS:
PHP version 7.0 or greater
MySQL version 5.6 or greater
WordPress Memory limit of 64 MB or greater (128 MB or higher is preferred)