xenforo v2.0.4

someone knows or can give me information about this hosting-sproutbox https://www.sproutbox.io/shared-hosting/

Upgrade system The following warnings were detected when verifying that your server can run XenForo: Your server has disabled a core PHP function exec via the disable_functions directive in php.ini. This may cause unexpected problems in XenForo. Your server has disabled a core PHP function...