Custom Code Directory in MailScanner?

[Mailing List Subscriber]

I just upgraded from the latest stable to the latest beta and am getting the
following on reload/restart...

Mar 23 17:15:54 vps MailScanner[26500]: MailScanner E-Mail Virus Scanner
version 4.29.5 starting...
Mar 23 17:15:54 vps MailScanner[26500]: Could not read custom config code
dir

I have a CustomFunctions directory...  is that what it's talking about?

drwxr-xr-x    2 root     root         1024 Mar 23 17:03 CustomFunctions

what am I missing?