For more information, see the PKP web site at http://pkp.sfu.ca. There is an OJS support forum available at https://forum.pkp.sfu.ca/; this is the preferred method of contacting the OJS team. Please be sure to search the forum archives to see if your question has already been answered.
If you have a bug to report, see the bug tracking system at http://pkp.sfu.ca/bugzilla.