Hi to all users of the pfeMAME frontend. I have noticed that the latest catver.ini (version 0.189) will break the parser in my front end. All my fault - didn't consider that the file would ever have non value lines.
To get around the bug for now, either don't update to the latest catver.ini, or open the file and delete the first three lines so that the first line is;
;; CATVER.ini 0.189 / 3-sep-17 / MAME 0.189 ;;
I will be releasing a bug fix (along with a major update) as soon as I have finished moving apartments.