MySQL Query Error: SELECT BEP.* FROM b_iblock B INNER JOIN b_lang L ON B.LID=L.LID INNER JOIN b_iblock_element BE ON BE.IBLOCK_ID = B.ID INNER JOIN b_iblock_element_prop_s5 BEP ON BEP.IBLOCK_ELEMENT_ID = BE.ID WHERE 1=1 AND ( ((((BE.IBLOCK_ID = '5')))) AND (((BE.ACTIVE_TO >= now() OR BE.ACTIVE_TO IS NULL) AND (BE.ACTIVE_FROM <= now() OR BE.ACTIVE_FROM IS NULL))) AND ((((BE.ACTIVE='Y')))) ) AND (((BE.WF_STATUS_ID=1 AND BE.WF_PARENT_ELEMENT_ID IS NULL))) AND (( B.ID IN ( SELECT IBLOCK_ID FROM b_iblock_group IBG WHERE IBG.GROUP_ID IN (2) AND IBG.PERMISSION >= 'R' AND (IBG.PERMISSION='X' OR B.ACTIVE='Y') ) OR (B.RIGHTS_MODE = 'E' AND EXISTS ( SELECT ER.ELEMENT_ID FROM b_iblock_element_right ER INNER JOIN b_iblock_right IBR ON IBR.ID = ER.RIGHT_ID INNER JOIN b_user_access UA ON UA.ACCESS_CODE = IBR.GROUP_CODE AND UA.USER_ID = 0 WHERE ER.ELEMENT_ID = BE.ID AND IBR.OP_EREAD = 'Y' )) )) ORDER BY BEP.IBLOCK_ELEMENT_ID [[2006] MySQL server has gone away]

DB query error. Please try later.

Fatal error: Uncaught Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137 Stack trace: #0 /home/bitrix/www/bitrix/modules/main/lib/db/mysqlcommonconnection.php(132): Bitrix\Main\DB\MysqliConnection->queryInternal('SELECT * FROM `...') #1 /home/bitrix/www/bitrix/modules/main/lib/db/connection.php(716): Bitrix\Main\DB\MysqlCommonConnection->getTableFields('b_sec_session') #2 /home/bitrix/www/bitrix/modules/main/lib/db/sqlhelper.php(387): Bitrix\Main\DB\Connection->getTableField('b_sec_session', 'SESSION_ID') #3 /home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php(975): Bitrix\Main\DB\SqlHelper->prepareAssignment('b_sec_session', 'SESSION_ID', 'Zn05A4zBc6qfBhd...') #4 /home/bitrix/www/bitrix/modules/security/classes/general/session_db.php(92): Bitrix\Main\Entity\DataManager::delete(Array) #5 [internal function]: CSecuritySessionDB::write('Zn05A4zBc6qfBhd...', 'SESS_AUTH|a:1:{...') #6 [internal function]: sess in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137