An error has occurred in the TNG software. What to do:<p>If you just installed an upgrade, you might have skipped part of the installation instructions. Go back to the upgrade readme page reread the instructions. Pay special attention to the database structure step.</p><p>If you just installed TNG for the first time, you might still need to create the database tables. Return to the readme.html page to find that step.</p><p>If you are the site owner, you may contact TNG support for further assistance with this problem. Please copy the query below and paste it into your message.</p><br /><br />Query: SELECT p.personID, p.lastname, p.firstname, p.birthdate, p.living, father.personID AS fatherNr, father.lastname AS Name1, father.firstname AS firstname1, father.living, mother.personID AS motherNr, mother.lastname AS Name2, mother.firstname AS firstname2, mother.living, p.gedcom FROM tng_children AS c LEFT JOIN tng_families AS f ON c.familyID=f.familyID LEFT JOIN tng_people AS p ON c.personID=p.personID LEFT JOIN tng_people AS mother ON f.wife=mother.personID LEFT JOIN tng_people AS father ON f.husband=father.personID WHERE f.husband="" OR f.wife="" ORDER BY p.lastname, p.firstname, p.birthdatetr  LIMIT 50<br /><br />The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay