Yes, this looks like a msg due to a incorrect installed frepbx, or a pbx installation that in some way is not compatible with the server it is installed on. (And it should actually have nothing to do with the sme server itself.)
I can see that there is a contrib, that is a modified freebpx installation made for the sme server. I have not tried it, but I guess it will fix up with some compability problems that initially might be there for the standard freepbx download.
http://wiki.contribs.org/FreePBX(just my guess. Normally I do not use freepbx or other automatic configuration tools for the Asterisk server.)