Error description: Out of memory; check if mysqld or some other process uses all available memory; if not, you may have to use 'ulimit' to allow mysqld to use more memory or you can add more swap spacearray(3) {
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SELECT MIN(id) id FROM s_office <br />
<b>Fatal error</b>:  Uncaught TypeError: Argument 1 passed to mysql_num_rows() must be an instance of mysqli_result, boolean given, called in /virtual/common/lib/s_data.php on line 2492 and defined in /virtual/common/lib/db.php:152
Stack trace:
#0 /virtual/common/lib/s_data.php(2492): mysql_num_rows(false)
#1 /virtual/common/lib/p_application.inc(1503): fetchData(false, '', '')
#2 /virtual/common/lib/p_application.inc(1236): pApplication::get_referring_office_id('')
#3 /virtual/hosts/ojcrew/local/public/public/index.php(106): pApplication::vacancy_head(Object(vlibTemplate))
#4 {main}
  thrown in <b>/virtual/common/lib/db.php</b> on line <b>152</b><br />