Cannot execute query: SELECT p.ID, p.personID, lastname, lnprefix, firstname, p.living, p.private, p.branch, nickname, prefix, suffix, nameorder, title, birthplace, birthdate, deathplace, deathdate, altbirthdate, altbirthplace, burialdate, burialplace, p.gedcom, treename FROM tng_people AS p LEFT JOIN tng_trees on p.gedcom = tng_trees.gedcom WHERE ( p.lastname = "LØFTEN") AND p.gedcom="T1" ORDER BY IF(p.birthdatetr, p.birthdatetr, p.altbirthdatetr), p.lastname, p.firstname LIMIT 50