[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: Table './nevelsk/b_sec_session' is marked as crashed and last (automatic?) repair failed (400)
SELECT 
	`security_session`.`SESSION_DATA` AS `SESSION_DATA`
FROM `b_sec_session` `security_session` 

WHERE `security_session`.`SESSION_ID` = 'RvoIBwziPNA07COw1hKxQDXG091XxbP7'
LIMIT 0, 1

/var/www/nevelsk/bitrix/modules/main/lib/db/mysqlconnection.php:116
#0: Bitrix\Main\DB\MysqlConnection->queryInternal(string, array, NULL)
	/var/www/nevelsk/bitrix/modules/main/lib/db/connection.php:329
#1: Bitrix\Main\DB\Connection->query(string)
	/var/www/nevelsk/bitrix/modules/main/lib/entity/query.php:1924
#2: Bitrix\Main\Entity\Query->query(string)
	/var/www/nevelsk/bitrix/modules/main/lib/entity/query.php:505
#3: Bitrix\Main\Entity\Query->exec()
	/var/www/nevelsk/bitrix/modules/main/lib/entity/datamanager.php:256
#4: Bitrix\Main\Entity\DataManager::getList(array)
	/var/www/nevelsk/bitrix/modules/main/lib/entity/datamanager.php:171
#5: Bitrix\Main\Entity\DataManager::getRow(array)
	/var/www/nevelsk/bitrix/modules/security/classes/general/session_db.php:59
#6: CSecuritySessionDB::read(string)
	
#7: session_start()
	/var/www/nevelsk/bitrix/modules/main/include.php:263
#8: require_once(string)
	/var/www/nevelsk/bitrix/modules/main/include/prolog_before.php:14
#9: require_once(string)
	/var/www/nevelsk/bitrix/modules/main/include/prolog.php:10
#10: require_once(string)
	/var/www/nevelsk/bitrix/header.php:1
#11: require(string)
	/var/www/nevelsk/city/photogallery/index.php:2
#12: include_once(string)
	/var/www/nevelsk/bitrix/modules/main/include/urlrewrite.php:159
#13: include_once(string)
	/var/www/nevelsk/bitrix/urlrewrite.php:2

( ! ) Fatal error: Uncaught exception 'Bitrix\Main\DB\SqlQueryException' with message 'Mysql query error: Table './nevelsk/b_sec_session' is marked as crashed and last (automatic?) repair failed' in /var/www/nevelsk/bitrix/modules/main/lib/db/mysqlconnection.php on line 116
Call Stack
#TimeMemoryFunctionLocation
10.05663627272Bitrix\Main\Diag\ExceptionHandler->handleException( )../exceptionhandler.php:0
( ! ) Bitrix\Main\DB\SqlQueryException: Mysql query error: Table './nevelsk/b_sec_session' is marked as crashed and last (automatic?) repair failed in /var/www/nevelsk/bitrix/modules/main/lib/db/mysqlconnection.php on line 116
Call Stack
#TimeMemoryFunctionLocation
10.05663627272Bitrix\Main\Diag\ExceptionHandler->handleException( )../exceptionhandler.php:0
20.06043641696session_write_close ( )../exceptionhandler.php:0
30.06043642088CSecuritySessionDB::write( )../exceptionhandler.php:0
40.06043642584Bitrix\Main\Entity\DataManager::delete( )../session_db.php:92