Mysql server crash failure to login to the bitrix admin panel?

Question

MySQL

Hello ! Please tell me in detail the way to fix this error, I'm very confused about the correctness of the actions of the server part. text jumps back and forth

[Bitrix\Main\DB\ConnectionException]
Mysql connect error [localhost]: (2002) No such file or directory (400)
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/ lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/lib/data/connection.php :53
#1: Bitrix\Main\Data\Connection->getResource()
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/lib/db/mysqlisqlhelper.php:21
#2: Bitrix\ Main\DB\MysqliSqlHelper->forSql(string)
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/lib/config/option.php:193
#3: Bitrix\Main\Config\Option::load(string)
/home/admin/web /wizdom.kz/public_html/bitrix/modules/main/lib/config/option.php:38
#4: Bitrix\Main\Config\Option::get(string, string, string)
/home/admin/web/wizdom .kz/public_html/bitrix/modules/main/lib/httprequest.php:394
#5: Bitrix\Main\HttpRequest->prepareCookie(array)
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main /lib/httprequest.php:71
#6: Bitrix\Main\HttpRequest->__construct(object, array, array, array, array)
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/lib /httpapplication.php:49
#7: Bitrix\Main\HttpApplication->initializeContext(array)
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/lib/application.php:131
#8: Bitrix\Main\Application->initializeExtendedKernel(array)
/home/admin/web/wizdom.kz /public_html/bitrix/modules/main/include.php:24
#9: require_once(string)
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/include/prolog_admin_before.php:31
#10: require_once(string)
/home/admin/web/wizdom.kz/public_html/bitrix/modules/main/interface/desktop.php:2
#11: require(string)
/home/admin/web/wizdom.kz/public_html/ bitrix/admin/index.php:2

Answer 1

Check your server space. Maybe it's over. through the console command df -h
if everything is ok with the place, then check the status of mysql, if the error is just try to start it. but if it doesn’t work out, then you have to figure it out. And also check, the accesses did not change by chance, it was like that, somehow I came across