Edit your index.php file and remove or comment out this part:
// Is it a new day/week/month?
list($last_new_day, $last_new_week, $last_new_month) =
$DB->fetch("SELECT last_new_day, last_new_week, last_new_month FROM {$CONF['sql_prefix']}_etc", __file__, __line__);
$time = time() + (3600...