Site subscription for the Maria Db server is not present in the security compliance licenses in BigFix v 11.
How to enable site subscription for Maria Db in BigFix , is it part of any other sites?
Look into the Supported Checklists - https://bigfix-wiki.hcltechsw.com/wikis/home?lang=en-us#!/wiki/BigFix%20Wiki/page/SCM%20Checklists