A nasty error has occurred. If the problem repeats, please fill (if possible) a bug report.<br/><br/>exception 'OzoneDatabaseException' with message 'PgConnection->query("SELECT site.* 
FROM 
  site 
  JOIN site_karma ON (site.site_id = site_karma.site_id) 
  JOIN site_settings ON (site.site_id = site_settings.site_id)
WHERE 
  site.privacy != 'private'
  AND site.deleted = false 
  AND site.visible = true 
  AND site_karma.level >=3 
  AND (site_settings.show_navibar = true OR site.status !~ '^pro(_lite|_plus)?$')
  AND NOT (site.status ~ '^pro(_lite|_plus)?$' AND site_settings.promote = false)
ORDER BY random()
LIMIT 1") (ERROR): 
FATAL:  query_wait_timeout
server closed the connection unexpectedly
	This probably means the server terminated abnormally
	before or while processing the request.
previous query: ("")
' in /wikidot/app/releases/94a62462381d19254927ed7748969a47e1fbda33/lib/ozone/php/core/database/PgConnection.php:127
Stack trace:
#0 /wikidot/app/releases/94a62462381d19254927ed7748969a47e1fbda33/lib/ozone/php/core/database/BaseDBPeer.php(82): PgConnection->query('SELECT site.* \n...')
#1 /wikidot/app/releases/94a62462381d19254927ed7748969a47e1fbda33/lib/ozone/php/core/database/BaseDBPeer.php(146): BaseDBPeer->selectByCriteria(Object(Criteria))
#2 /wikidot/app/releases/94a62462381d19254927ed7748969a47e1fbda33/web/random-site.php(33): BaseDBPeer->selectOne(Object(Criteria))
#3 {main}