I don't see any "blank page" problem. Did you patch the problem already? What category(s) should i click to see the error?
FYI: "Blank Page" errors are "Internal Server Error - aka. FATAL ERROR". You should enable the "Error Reporting" to "Maximum" via "Joomla Global Configuration". So you will actually see what PHP file and what PHP lines generates the FATAL error message, instead of a completely blank page.
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