Thread:Project:Support desk/500 error thrown on a specific word?

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http://www.sunth.com/marschapters/index.php?title=Mars_Society_Chapters:Community_portal&oldid=68

This page was working fine before exporting database from a MoWeS installation and importing to a production server. After migration, section edits appeared to be working fine, but page edits would fail with 500 error on submit. No trace in Apache error logs. Virtual host does not provide php error_log.

As shown in page history, proceeded to cut entire content of page, then began pasting back a little at a time. Finally localized issue to text in section "1.6 Look and Feel". Further cutting and pasting identified issue in second order bullet "** transclude public data (glue from tms.org)". Issue finally narrowed to word "from". If word changed to "fro" or "fro m", submit of edits would succeed. Restored to "from", submit of page edits (and edits for that section) fail.

http://www.sunth.com/marschapters/index.php?title=Mars_Society_Chapters:Community_portal&oldid=90

Any clues appreciated.