Plugin Vulnerability and removed from WP Repo

I have scanned my client site with Wordfence and am getting this alert for WP CERBER. Is there a vulnerability with the plugin? It is up to date, by the way. PLEASE ADVISE:

The Plugin “WP Cerber Security, Anti-spam & Malware Scan” has been removed from www.ads-software.com but is still installed on your site.

Type: Plugin Removed

Details:?Your site is still using this plugin, but it is not currently available on www.ads-software.com. Plugins can be removed from www.ads-software.com for various reasons. This can include benign issues like a plugin author discontinuing development or moving the plugin distribution to their own site, but some might also be due to security issues. In any case, future updates may or may not be available, so it is worth investigating the cause and deciding whether to temporarily or permanently replace or remove the plugin.