Hi @Christo, thanks for joining in!

Did you download the zip file that @Kroc linked to in reply #1 or did you download NoNonsense Forum?

NoNonsenseForum still includes DOMTemplate version 17. The above mentioned problem has only been fixed in version 18. You can get the latest version of DOMTemplate by using the download link in this topic: https://github.com/Kroc/DOMTemplate/archive/master.zip

Alternatively you can grab the development version of NoNonsense Forum, which includes the latest DOMTemplate: https://github.com/Kroc/NoNonsenseForum/archive/development.zip