webtrees 1.4 migration
Check row uniqueness and, if necessary, correct. SELECT *, COUNT(*) FROM `wt_media` GROUP BY `m_media` HAVING COUNT(*) > 1 Also, check forums: http://www.webtrees.net/index.php/en/forum/help-for-ver-1-4-0-latest-release/27453-error-after-upgrade#34121 Make sure that media directory is moved