still problems with parsing of history

Hello, I did as you suggested and issued the following mysql command: update `xwikidoc` set XWD_ARCHIVE=NULL WHERE XWD_FULLNAME="Direction.QuifaitquoiIrm" however, i still get the nearly same error. This time it doesn't complain it can't parse 'oma.be', it complains it can't parse '' (yes, the empty string, at line 0 column 0) How do i cleanly remove the archive?