Report bugs to bug-solfege@gnu.org. If you are running Debian, you can use the debian bug tracking system. Don't use the bug tracking system on Sourceforge. General questions and patches should be sent to solfege-devel@lists.sourceforge.net.
Please make your bug reports detailed. "I get an error message in a window when I try to start the program." is not usable to me. When reporting bugs: