My backup setting is set to "Per Account and Entire MySQL Directory" and I just extracted a backup. But the only file in /mysql is openfileslimit. WHM 66.0.23. I am using MariaDB, but didn't think that would cause this issue. Any ideas?
Yep:
[2017-10-03 02:09:25 -0400] The “Mysql” failed with an error: Invalid MySQL version: “” at /usr/local/cpanel/Cpanel/MysqlUtils/Version.pm line 40.