The log says:
:info:build dyld: Library not loaded: /opt/local/lib/libfreetype.6.dylib
:info:build Referenced from: /opt/local/lib/libfontconfig.1.dylib
:info:build Reason: Incompatible library version: libfontconfig.1.dylib requires version 18.0.0 or later, but libfreetype.6.dylib provides version 15.0.0
Are your ports up to date? If you run sudo port selfupdate, are any ports (especially freetype) shown as outdated when you run port outdated? If so, please upgrade them by running sudo port upgrade outdated.
If freetype is not shown as outdated, then something outside of MacPorts has replaced your freetype library with an older version. You can forcibly reinstall the correct version of freetype by running sudo port -n upgrade --force freetype, however there's no guarantee that the same outside influence hasn't replaced other libraries, in which case you'd have to repeat these steps for those ports as well. Another option is to completely uninstall all ports, and MacPorts itself, then reinstall MacPorts and the ports you want; that way, you can be sure that all the files that are there are the ones that are supposed to be there.
