In the latest version, we have moved the re-install functionality on the cron. To fix this issue you need to set up this reinstall file "wgs_reinstall_vm.php" with an interval of 5 minutes on your server.
php -q /your whmcs dir path/crons/wgs_reinstall_vm.php
For more information follow this link: http://wiki.whmcsglobalservices.com/index.php?title=VMware_WHMCS_Module#How_to_set_the_cron.3F
