Thanks for taking the time to make the screenshots.
As for the EnhancedItems.u , there was indeed a versionmismatch between the server's file and the one on the redirect. This would typically result in a 'server refused to send ...' connection message. since bAllowDownloads = false on the server (Forces redirect usage).
I check for mismatches every once in two weeks by connecting to the server with a vanilla install of UT.
As for the GPF's i'll see what i can do.
the last one could be caused by an ini tweak though. (compare with default.ini)
cya on the server,