Can’t Even Activate the Plugin

Doesn’t work with PHP 7.1 or 7.0. #Fail

Warning: require_once(/srv/users/serverpilot/apps/***/public/wp-content/plugins/rets-rabbit/vendor/composer/autoload_static.php): failed to open stream: No such file or directory in /srv/users/serverpilot/apps/***/public/wp-content/plugins/rets-rabbit/vendor/composer/autoload_real.php on line 28

Fatal error: require_once(): Failed opening required ‘/srv/users/serverpilot/apps/***/public/wp-content/plugins/rets-rabbit/vendor/composer/autoload_static.php’ (include_path=’.:/opt/sp/php7.1/lib/php’) in /srv/users/serverpilot/apps/***/public/wp-content/plugins/rets-rabbit/vendor/composer/autoload_real.php on line 28