Yeah searching for it here failed for me to. X-Sys is a system information plugin for X-Chat originaly created by Michael Shoop and was ported to maemo by querty12. I have seen a few good comments on it here and there leading me to believe it was fully functional at one time but not one report of an error or crash since its release.

I am currently rummaging through other distros that may have encountered this error but nothing solid so far that looks like a lead to a fix. I have also not figured out where this plugin installs either as it does not place the script in the traditional ~/.xchat2/plugins/ folder it places it somewhere else.