PDOException: SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction in /var/www/html/vendor/yiisoft/yii2/db/Command.php:1320
Stack trace:
#0 /var/www/html/vendor/yiisoft/yii2/db/Command.php(1320): PDOStatement->execute()
#1 /var/www/html/vendor/yiisoft/yii2/db/Command.php(1120): yii\db\Command->internalExecute(NULL)
#2 /var/www/html/vendor/craftcms/cms/src/helpers/Db.php(1168): yii\db\Command->execute()
#3 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(1137): craft\helpers\Db::delete('{{%elements_bul...', Array)
#4 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(1173): craft\services\Elements->endBulkOp('yugpysczdu')
#5 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(3498): craft\services\Elements->ensureBulkOp(Object(Closure))
#6 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(1251): craft\services\Elements->_saveElementInternal(Object(craft\elements\Entry), true, true, NULL, Array, false, true, true)
#7 /var/www/html/vendor/craftcms/cms/src/controllers/ElementsController.php(1695): craft\services\Elements->saveElement(Object(craft\elements\Entry), true, true, NULL, false, true)
#8 [internal function]: craft\controllers\ElementsController->actionApplyDraft()
#9 /var/www/html/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#10 /var/www/html/vendor/yiisoft/yii2/base/Controller.php(178): yii\base\InlineAction->runWithParams(Array)
#11 /var/www/html/vendor/yiisoft/yii2/base/Module.php(552): yii\base\Controller->runAction('apply-draft', Array)
#12 /var/www/html/vendor/craftcms/cms/src/web/Application.php(349): yii\base\Module->runAction('elements/apply-...', Array)
#13 /var/www/html/vendor/craftcms/cms/src/web/Application.php(650): craft\web\Application->runAction('elements/apply-...', Array)
#14 /var/www/html/vendor/craftcms/cms/src/web/Application.php(311): craft\web\Application->_processActionRequest(Object(craft\web\Request))
#15 /var/www/html/vendor/yiisoft/yii2/base/Application.php(384): craft\web\Application->handleRequest(Object(craft\web\Request))
#16 /var/www/html/web/index.php(13): yii\base\Application->run()
#17 {main}

Next yii\db\Exception: SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction
The SQL being executed was: DELETE FROM `elements_bulkops` WHERE `key`='yugpysczdu' in /var/www/html/vendor/yiisoft/yii2/db/Schema.php:676
Stack trace:
#0 /var/www/html/vendor/yiisoft/yii2/db/Command.php(1325): yii\db\Schema->convertException(Object(PDOException), 'DELETE FROM `el...')
#1 /var/www/html/vendor/yiisoft/yii2/db/Command.php(1120): yii\db\Command->internalExecute('DELETE FROM `el...')
#2 /var/www/html/vendor/craftcms/cms/src/helpers/Db.php(1168): yii\db\Command->execute()
#3 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(1137): craft\helpers\Db::delete('{{%elements_bul...', Array)
#4 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(1173): craft\services\Elements->endBulkOp('yugpysczdu')
#5 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(3498): craft\services\Elements->ensureBulkOp(Object(Closure))
#6 /var/www/html/vendor/craftcms/cms/src/services/Elements.php(1251): craft\services\Elements->_saveElementInternal(Object(craft\elements\Entry), true, true, NULL, Array, false, true, true)
#7 /var/www/html/vendor/craftcms/cms/src/controllers/ElementsController.php(1695): craft\services\Elements->saveElement(Object(craft\elements\Entry), true, true, NULL, false, true)
#8 [internal function]: craft\controllers\ElementsController->actionApplyDraft()
#9 /var/www/html/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#10 /var/www/html/vendor/yiisoft/yii2/base/Controller.php(178): yii\base\InlineAction->runWithParams(Array)
#11 /var/www/html/vendor/yiisoft/yii2/base/Module.php(552): yii\base\Controller->runAction('apply-draft', Array)
#12 /var/www/html/vendor/craftcms/cms/src/web/Application.php(349): yii\base\Module->runAction('elements/apply-...', Array)
#13 /var/www/html/vendor/craftcms/cms/src/web/Application.php(650): craft\web\Application->runAction('elements/apply-...', Array)
#14 /var/www/html/vendor/craftcms/cms/src/web/Application.php(311): craft\web\Application->_processActionRequest(Object(craft\web\Request))
#15 /var/www/html/vendor/yiisoft/yii2/base/Application.php(384): craft\web\Application->handleRequest(Object(craft\web\Request))
#16 /var/www/html/web/index.php(13): yii\base\Application->run()
#17 {main}
Additional Information:
Array
(
    [0] => 40001
    [1] => 1213
    [2] => Deadlock found when trying to get lock; try restarting transaction
)